Question

A ball with a weight of 14 N falls off a ledge 65 cm high. How much work is done by gravity?

Answer 1

Answer:

91 J is the work done by gravity.

Explanation:

• Work done = Force (N)* Distance (m)

   

Here the force given is 14N and distance is 65cm

here the distance is in cm, so we should change it in m.

1 cm --> 0.01 m

65 cm --> ( 0.01 * 65) m

65 cm --> 0.65 m

• So work done = 14 * 0.65 = 91 Joules

Answer 2

• Force=14N
• Distance=65cm=6.5m

Work done

$\\ \tt\hookrightarrow Force\times Distance$

$\\ \tt\hookrightarrow 14(6.5)$

$\\ \tt\hookrightarrow 91J$