Home › CBSE Class 11 › Physics › Motion in a Plane › Per NCERT §3.9 (horizontal projectile from cliff…
Per NCERT §3.9 (horizontal projectile from cliff Ex 3.7), the horizontal and vertical velocities at the moment of impact depend on which factors?
ABoth shrink to zero at impact
Bv_x stays v₀ ; v_y = g·t
COnly on cliff height h
DOnly on the launch angle θ
Answer & Solution
Correct answer: B. v_x stays v₀ ; v_y = g·t
NCERT Ex 3.7: x-component is unchanged (a_x = 0); y-component grows as gt downward. Independent components.
Related questions
The time for one full revolution is the:Centripetal acceleration has constant magnitude but is not a constant vector because its:Newton named the centre-directed acceleration:The acceleration in uniform circular motion always points:A car goes round a roundabout at a steady 20 km/h. Its motion is:For a fixed launch speed, range is greatest at a launch angle of:The horizontal distance from launch to where the projectile lands back at the same level iTime of flight is twice the time to reach maximum height because the path is: