Question

Rahul is carrying 20 bricks of 10 N each for 30m distance in ½ minutes

time, calculate his power.

Answer 1

Answer: 400 watt

Explanation: Force(f)=20×10N=200N

Displacement (d)=100m

Time(t)=50 sec

We have,

Power=F×d_t=200×100_50

Ans=400 watt

Answer 2

Step-by-step explanation:

Equations

You need two equations.

P = W / delta time

W = F * d

Givens

F = 20 * 10N The 10 Newtons is what is important.

d = 30 m

t = 1/2 minute = 30 seconds

Solution

W = F * d

W = 20*10N * 30 m

W = 6000 Joules

Power

Power = Work/time

Power = 6000 joules / 30 seconds

Power = 200 watts

Note a watt is a Joule / second.