AP EAPCET (Engineering) Motion in a Plane — practice questions
85 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice AP EAPCET (Engineering) Motion in a Plane in the app →Ignoring air resistance, a ball hit at an angle follows which path?During projectile motion, which velocity component stays unchanged throughout the flight?A stone leaves at 30 m/s, 30 degrees above level. With g = 10, time to the top?A javelin is thrown at 50 m/s with sin(angle) = 0.6. Using g = 10, how long is it airborne?A football takes 2 s to reach its peak and lands at the launch level. What is its total flight time?At what projection angle is the horizontal range of a projectile greatest for a given speed?A shell fired at 30 degrees has the same range as one fired at the same speed at which other angle?A ball is thrown at 20 m/s for maximum range. With g = 10, how far does it go?A ball is launched at 20 m/s at 30 degrees. Taking g = 10 m/s^2, what is the greatest height reached?In uniform circular motion, the velocity of the object at any point points along which direction?The acceleration of a body moving uniformly on a circle is directed in which way?Which quantity remains constant for a particle in uniform circular motion?A wheel turns at a frequency of 5 Hz. What is its angular speed in rad/s?A stone on a string of length 0.5 m circles twice every second. What is its linear speed?A cyclist rounds a bend of radius 5 m at 10 m/s. What is the centripetal acceleration?A fan blade has an angular speed of pi rad/s. What is its time period of revolution?The statement A + B = B + A shows that vector addition obeys which law?The relation (A + B) + C = A + (B + C) expresses which property of vector addition?What do we get when a vector A is added to its negative, -A?Subtracting vector B from vector A is defined as adding A to which vector?Which of these has magnitude one and carries neither dimension nor unit?A force of 10 N acts at 60 degrees to the x-axis. What is its x-component?What is the magnitude of the vector 3i + 4j?Two perpendicular forces of 6 N and 8 N act on a body. What is the magnitude of the resultant?Two vectors of magnitude 5 each are inclined at 120 degrees. What is the magnitude of their resultant?What happens to the direction of a vector when it is multiplied by a negative real number?A particle shifts from the point (1, 2) to the point (4, 6) in a plane. What is the magnitude of its displacemA boat heads straight across at 4 m/s in a 3 m/s current. Its speed over the ground?Which Greek letter denotes the angular speed of a body in circular motion?Which single force acts on an ideal projectile once it has been launched?The path followed by an ideal projectile near Earth's surface is a:Who showed that the trajectory of a projectile is parabolic?The study of the flight of projectiles is called:In projectile motion the horizontal and vertical motions are:During the flight of an ideal projectile, its horizontal velocity component:Why does the vertical velocity component of a projectile change linearly with time?The total time a projectile stays in the air is called its:The greatest height reached by a projectile is known as the:A ball is thrown at some angle. Its range and maximum height depend on the ball's:A projectile reaches its maximum height after what fraction of its total time of flight (level ground)?For a fixed launch speed on level ground, the launch angle that gives the maximum range is:A missile that is guided only during its brief powered phase and then follows classical mechanics is called a:In the idealised model of a trajectory, which effect is usually neglected along with air resistance?At high Reynolds numbers, air drag on a projectile is roughly proportional to the:A rocket trajectory whose apogee is higher than the minimum-energy path to the same range is called:A stone falls from a cliff 80 m high after being thrown horizontally. Taking g as 10 m/s2, how long does it taA ball is thrown at 20 m/s at 30 degrees above the horizontal on level ground. With g = 10 m/s2, its time of fA shot leaves at 40 m/s at 30 degrees to level ground. Taking g = 10 m/s2, the maximum height reached is:A ball is kicked at 20 m/s at 45 degrees on level ground. Using g = 10 m/s2, its horizontal range is:Two projectiles with the same speed are launched at 30 and 60 degrees. The ratio of their ranges is:At the top of its path, a projectile launched at 50 m/s at 37 degrees (cos 37 = 0.8) has a speed of:If the launch speed of a projectile is doubled at the same angle, its horizontal range becomes:A stone is thrown horizontally at 20 m/s from a tower. After 3 s (g = 10 m/s2) its vertical velocity componentA ball rolls off a 45 m high shelf at 15 m/s. With g = 10 m/s2, it lands at what horizontal distance from the For a launch at 45 degrees, the ratio of horizontal range to maximum height is:What term describes motion of an object along a circular path?In uniform circular motion, which quantity stays constant?Why does velocity change in uniform circular motion even though speed is constant?The inward acceleration of a body in uniform circular motion is called:Without centripetal acceleration, a body in circular motion would:An electron moving perpendicular to a uniform magnetic field follows a path that is:In rotation of a rigid body about a fixed axis, which quantity is the same for all particles?The direction of the angular velocity vector is chosen using the:The linear velocity of a particle in circular motion is directed:A wheel completes one revolution in 2 s. Its angular velocity in rad/s is:A body goes round a circle of radius 0.5 m at 4 rad/s. Its linear speed is:A body circles at a constant speed. If its radius is doubled, its centripetal acceleration becomes:A particle makes a full circle every 0.5 s. Its frequency is:A 0.2 kg stone is whirled in a circle of radius 0.5 m at 5 m/s. The string tension is:The circumference of a circle of radius r, used to find speed in circular motion, equals:The relative velocity of object B with respect to observer A is the velocity of:Two cars move in the same direction at 60 km/h and 40 km/h. The faster car's speed relative to the slower is:Two trains approach each other on parallel tracks at 60 km/h and 40 km/h. Each sees the other approach at:A boat heads straight across a river at 4 m/s in still water while the current is 3 m/s. Its speed relative toThe Galilean transformation is associated with relative motion when all speeds are:A particle moves on a circle at constant speed. Its acceleration pointsIf the centripetal force on a whirling stone vanished suddenly, the stone wouldParticles of a rigid body rotating about a fixed axis all share the sameIn non-uniform circular motion, the extra component of acceleration isAn idealised projectile with air resistance neglected follows a path that isFor a fixed launch speed on level ground, the horizontal range is largest at a launch angle ofA ceiling fan blade tip moves in uniform circular motion. Its velocity is alwaysA body of 1 kg moves on a circle of radius 1 m at 1 rad/s. The centripetal force on it isA projectile is launched at 45 degrees with speed v and g is the gravity magnitude. Its time of flight on leveA ballistic missile is guided only during its