Physics - Kinematics Question with Solution | TestHub
PhysicsKinematicsRelativeMedium2 minQB
PhysicsMediumsingle choice
Statement I: A box that falls from the top of a uniformly moving truck keeps the horizontal velocity of the truck during its fall. Statement II: Relative to a car following the truck at the same speed, the falling box drops vertically downward.
Options:
Answer:
A
Solution:
Neglecting air resistance the horizontal velocity of the box is unchanged after it leaves the truck, so Statement I is true. The car has the same horizontal velocity, so the relative horizontal velocity is zero and the box falls straight down in the car frame: Statement II is also true. Option A.
Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:Relative
⏱ 2mℹ️ Source: QB
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