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cindy exerts a force of 40 newtons and moves a chair 6 meters. her brother andy pushes a different chair for 6 meters while exerting a force of 30 newtons. andy does work than cindy. the difference of their amounts of work is nm.

User Arina
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2 Answers

4 votes

Answer:

The difference of their amounts of work is 60 Nm.

Step-by-step explanation:

Given that,

Force exerted by Cindy = 40 N

Distance = 6 m

Force exerted by her brother = 30 N

Distance = 6 m

We need to calculate the work done by Cindy

Using formula of work done


W=F\cdot d

Put the value into the formula


W_(c)=40*6


W_(c)=240\ Nm

We need to calculate the work done by her brother

Using formula of work done


W=F\cdot d

Put the value into the formula


W_(b)=30*6


W_(b)=180\ Nm

We need to calculate the difference of their amounts of work

The difference of work done is


W=W_(c)-W_(b)

Put the value into the formula


W=240-180


W=60\ Nm

Hence, The difference of their amounts of work is 60 Nm.

User Jan Misker
by
8.3k points
6 votes
Work formula:
W = F * d
F 1 = 40 N, d 1 = 6 m;
F 2 = 30 N; d 2 = 6 m.
W ( Cindy ) = 40 * 6 = 240 Nm
W ( Andy ) = 30 * 6 = 180 Nm
The difference of their amounts if work:
240 Nm - 180 Nm = 60 Nm

User Dragonjet
by
8.5k points