Question

A body B, slides down a smooth inclined plane when released from top. Another body of same mass falls freely from the top of the inclined plane. Both reach ground
1.after same time
2.with same kinetic energy
3.with same momentum
4.with same velocity

Answer 1

Answer:

2.with same kinetic energy

Explanation:

velocity is a vector quantity so magnitude and direction should be same.But here velocities will be different as b4 it slides its at rest so u=0 and when it reaches down V=

$\sqrt{2gh}$

so here velocities r not the same.Time will also not be same.As velocity is different momentum too will be different.

kinetic energy will be same.

Answer 2

The block slides down a smooth slope when released, while the other falls freely from the same position:

• The slippery block will come down first at high-speed B.
• The free-falling block will first land on the ground at high-speed C.
• Both blocks will come down at the same time but at different speeds.
• Since the kinetic energy of both bodies is the same, the force is directly proportional to the square root of the weight.
• Now, bodyweight B is larger than body A.
• Therefore, body B will have more energy than body A.
• The two bodies have a mass ratio of 5: 1 and kinetic energy.
• The kinetic potential of an asteroid falling to the ground is enormous.
• The kinetic energy of flying is great during the flight due to its high weight and fast speed.
• There are five types of kinetic energy:
• Glossy, hot, sound, electric, and mechanical.
• The kinetic energy can be transferred from one object to another, as we have seen with our bowling example; this is called translational kinetic energy.
• All energy in the universe falls into two main categories: kinetic and energy. Kinetic energy is the power of movement.