Question

Calculate the work done when a force of 20 N is utilized to hold a box of 2 kg.

Answer 1

Explanation:

Explanation:

Use the formula

F

=

m

a

to solve this problem. In the case of the

20 N

force, we have

20 N

=

2 kg

×

a

so

a

=

10 m/s

2

→

read this as

10

meters per second squared, or

10

meters per second every second

Applying the formula again in case of the

20 kg

object, we have

F=ma

F=20 kg×10 m/s2

F=200 N

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Answer 2

Answer:

word done = mass × force

work done = 2kg × 20N = 40kg per N