TS EAPCET (Engineering) Laws of Motion — practice questions
103 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice TS EAPCET (Engineering) Laws of Motion in the app →Newton's FIRST law is also called the law of:Newton's SECOND law states:The SI unit of force is the:Frictional force between surfaces ALWAYS acts:Static friction f_s satisfies:Kinetic friction f_k is given by:For a body on a horizontal surface, the NORMAL FORCE N equals:In circular motion at radius r and speed v, the centripetal acceleration is:The ANGLE OF REPOSE φ is related to coefficient of friction by:A 5 kg object experiences a net force of 20 N. Find its acceleration:A 10 kg block on rough horizontal surface with μ_s = 0.3 just starts moving. Force applied:A block of mass 2 kg on a smooth incline at 30°. Acceleration down the incline (g = 10):A 1500 kg car accelerates from 0 to 30 m/s in 10 s. Average force on car:In a tug-of-war, team A pulls with 200 N, team B pulls oppositely with 250 N. The rope (light) experiences netA block of mass 5 kg on a rough incline at 37° with μ_k = 0.4. Acceleration down (g = 10, sin 37° = 0.6, cos 3For a body on a 60° incline with μ = 0.5, the body:An object's WEIGHT on Earth (g = 10) is 50 N. Its MASS is:A 5 kg block is pushed with 30 N along a frictionless surface. Acceleration:A massless pulley system has two blocks: m₁ = 6 kg and m₂ = 4 kg hanging on either side. Find acceleration of The angle of repose between a block and an incline is 30°. The coefficient of static friction is:A 100 g object is moving in a vertical circle. At the TOP of the loop, for minimum speed (string just slack), Limiting (max static) friction is INDEPENDENT of:A 4 kg mass hangs from a spring scale in an elevator. Spring reads 32 N. The elevator is:A 3 kg block is pulled with F = 20 N at 30° above horizontal on rough surface (μ_k = 0.4). Find acceleration (In a uniform circular motion, the SPEED is constant but velocity changes direction. The acceleration:A car turns a corner of radius 50 m at 20 m/s. Minimum coefficient of friction needed (g = 10):A 50 kg person stands on a scale in an elevator accelerating UP at 2 m/s². Scale reading:Two equal masses (3 kg each) connected by a light string over a frictionless pulley. One on smooth horizontal A pendulum of mass m swings to amplitude angle θ. At the lowest point of swing, the TENSION in the string equaA car of mass 1000 kg moving at 36 km/h is stopped by brakes in 5 seconds. Average force exerted by brakes:Newton's first law of motion is also known as the law ofA cricket ball of mass 150 g moving at (3i+4j) m/s is hit to -(3i+4j) m/s. The magnitude of momentum change isConservation of linear momentum in a collision follows directly fromA force F acts on a 2 kg body for 3 s, changing its speed from 2 m/s to 8 m/s along the line of F. The magnituThe maximum static friction force on a body is f = μN. Static friction is best described asA 10 kg block on a frictionless surface is pulled by 20 N horizontally and 20 N at 60° above horizontal. The hImpulse equalsA body in equilibrium under several forces hasA 0.5 kg ball hits a wall at 10 m/s and rebounds at 10 m/s. The impulse on the ball isNewton's second law in vector form isA lift accelerates upward at 2 m/s². The apparent weight of a 50 kg person (g=10) isTwo blocks of 2 kg and 3 kg connected by a string are pulled by 10 N on the 3 kg block (frictionless). The accThe SI unit of force, the newton, equalsA passenger standing in a bus is thrown backward when the bus suddenly starts moving forward. This is best expOne newton is defined as the force that gives a mass of 1 kg an acceleration of:The linear momentum of a body is defined as the product of its:The impulse of a force has the same dimensions as:The action and reaction forces of Newton's third law:For a given pair of surfaces, the coefficient of kinetic friction is usually:A constant force of 20 N acts on a 5 kg body initially at rest. Its speed after 3 s is:A 0.15 kg ball moving at 12 m s⁻¹ is hit straight back along its path with the same speed. The magnitude of thA 0.04 kg bullet moving at 90 m s⁻¹ is stopped after penetrating 0.6 m into a block. The average resistive forA block just begins to slide down an incline when the angle of inclination is 30°. The coefficient of static fA 0.02 kg bullet is fired with a speed of 300 m s⁻¹ from a 4 kg gun. The recoil speed of the gun is:A 50 kg person stands on a weighing scale inside a lift accelerating upward at 2 m s⁻² (g = 10 m s⁻²). The scaA 0.5 kg stone tied to a string is whirled in a horizontal circle of radius 2 m at a speed of 4 m s⁻¹. The tenThe maximum speed at which a car can round an unbanked circular turn of radius 150 m without skidding is (μs =For a 3 kg block connected over a frictionless pulley to a 20 kg trolley (μk = 0.04, g = 10 m s⁻²), the tensioA net force F = 6t newton (t in seconds) acts on a 2 kg body initially at rest. The speed of the body at t = 4A block slides down a rough incline of 30° with coefficient of kinetic friction 0.2 (g = 10 m s⁻²). Its acceleA lift descends with a downward acceleration equal to g. The apparent weight of a passenger standing inside isA 0.2 kg ball strikes the floor vertically at 10 m s⁻¹ and rebounds at 8 m s⁻¹. The magnitude of the impulse iThe optimum (design) speed for a car on a frictionless road banked at 45° along a curve of radius 100 m is (g Contact forces like friction ultimately arise from:The laws of friction are best described as:Friction between two surfaces in contact opposes:A box stays at rest on the floor of an accelerating train. What accelerates it?Crate on a truck bed, μs = 0.25, g = 10 m/s². Highest truck acceleration with no slipping?In the spring law F = -kx, the minus sign means:Forces of 3 N and 4 N act at right angles on a particle. What third force keeps it in equilibrium?A 4 kg mass on a rope is held aside by a 30 N horizontal pull (g = 10 m/s²). Upper rope tension?Which of these forces acting on a body is a contact force?For equal weight, how does rolling friction compare with sliding?Why are ball bearings placed between moving parts of a machine?How does the coefficient of kinetic friction compare with that of static friction for the same surfaces?A car takes a turn on a flat horizontal road. Which force supplies the centripetal force?A stone is whirled in a circle on a string. What provides its centripetal force?A car rounds a flat curve of radius 80 m with µs = 0.5 and g = 10 m/s². Maximum safe speed?Which expression gives the SI unit of force, the newton, in base units?Second law is a local law. What does this say about acceleration?Impulse is the product of force and time. What else is it equal to?What may be assumed about position during a brief impulsive force?Which statement on action and reaction forces is correct?A body is in complete equilibrium. Besides zero net force, what else holds?What does Newton's second law reduce to when the net force on a body is zero?On a perfectly smooth train floor, what happens to a box as the train speeds up?Newton's second law is a vector equation. What does this imply for force and acceleration?Which Greek thinker held that a force is needed to keep a body moving?Why does a toy car pulled by a child stop when the string is released?Which scientist's inclined plane experiments led to the law of inertia?A body moving on a frictionless horizontal plane has what acceleration?A spaceship with rockets off in deep space, far from all objects, will do what?Newton's first law is a statement about which property of matter?Momentum is defined as the product of which two quantities?What is the SI unit of momentum?The same force acts for the same time on a light and a heavy body at rest. What is equal afterwards?Why does a cricketer pull his hands back during a catch?A 10 N force acts on a 5 kg body at rest for 3 s. Final speed?A 2 kg body's speed changes from 3 m/s to 8 m/s along a line. Impulse?Action and reaction forces act on which bodies?At the microscopic level, contact forces ultimately arise from which force?A box stays at rest on a train floor with µs = 0.2. Maximum train acceleration? (g = 10)A car on a level road has µs = 0.5 and turn radius 20 m. Maximum speed? (g = 10)