Question

Two blocks A and B are released at the top of a rough inclined plane so that A slides along the plane and B falls down freely. Which will have higher velocity on reaching the ground-A or B? Explain.

Answer 1

B

as A falls through the rough plane the velocity will decrease due to the frictional force between the plane and A .

may be it's correct.

Answer 2

Answer:

Both will hit the ground at the same time and have the same velocity

Explanation:

• The initial velocity of both are the same
• The acceleration due to gravity is also the same
• So on the vertical axis, all the physical quantities, height, acceleration and time as well as initial velocity are all the same
• Thus, the final velocity has to be the same too.
• Any motion of a body in which gravity is the only force acting on it is referred to as free fall in Newtonian physics.
• A body in free fall has no force acting on it according to general relativity, where gravitation is reduced to space-time curvature.

Both will have the same velocity.

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