Question

The work done is moving a body through 50cm is 60J. find the force applied ​

Answer 1

Answer:

Explanation:

displaces a body through 10 m in the direction

of the force.

(Ans. 600 J)

2. When a force of 30 N acts on a body, the body

is displaced by 10 m in the direction inclined

at 60° to the force. Find the work done by the

force.

(Ans. 150 J)

3. A body of mass 5 kg is lifted through a height

of 20 m. Calculate the work done by the

applied force.

(Ans. 980 J)

4. If the energy of a ball falling from a height of

20 m is reduced by 60%, how high will it

rebound?

(Ans. 8 m)

5. A body of mass 2 kg moves with a velocity of

5 m/s. Find its kinetic energy. (Ans. 25 J)

6. The speed of a body of mass 4 kg increases

from 2 m/s to 4 m/s in a certain time interval.

Find the increase in the kinetic energy of the

body.

(Ans. 24 J)

7. Calculate the potential energy of a body of

mass 5 kg at a height of 2 m from the ground.

(Ans. 98 J)​

Answer 2

Answer:

THE ANSWER OF THIS NUMERICAL IS (120 Joules)