Question

when a constant force 20N acts on a body and its position changes by 5m in 10 sec, then the power delivered to the body is​

Answer 1

Answer:

Power Delivered = ( Force*Distance )/Time

=(20*5)/10

=10 Watt

Answer 2

Given:-

• Force ,F = 20 N

• Displacement ,s = 5 m

• Time taken ,t = 10 s

To Find:-

• Power delivered to the body ,P

Solution:-

Firstly we calculate the Work done by body

• W = Fs

Where,

W is the Work Done

F is the Force

s is the displacement

Substitute the value we get

→ W = 20×5

→ W = 100 J

Therefore, work done by body is 100 Joules.

Now,

As we know that Power is defined as the work done by body at per unit time.

• P = W/t

where,

P is the power delivered

W is the Work Done

t is the time taken

Substitute the value we get

→ P = 100/10

→ P = 10 watt

Therefore, the power delivered by the body is 10 Watt.