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Chapter 6: Q6-20 (page 277)

You pull your little sister across a 铿俛t snowy 铿乪ld on a sled. Your sister plus the sled have a mass of 20 kg. The rope is at an angle of 35 degrees to the ground. You pull a distance of 50 m with a force of 30 N. How much work do you do?

Short Answer

Expert verified

Answer:

Work done after pulling little sister across a flat snowy field on a sled is.

Step by step solution

01

Definition of the work done

Work is said to be done when an object is displaced from its actually position when an external force is applied on it.

The work done as a result of the force is given by or . Where is the work done, is the external force and is the displacement.

02

Determine work done

Substitute ,and into the formula of work done.

Therefore, the work done after pulling little sister across a flat snowy field on a sled is .

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