how can I measure the power?

Question

A sled is being pulled along a horizontal surface by a horizontal force of magnitude 600 N. Starting from rest, the sled speeds up with acceleration 0.08 for 1 minute.

Part E
Find the average power created by force .
Express your answer in watts to three significant figures.

Answer 1

W = integral(F.ds)
for this problem, F is constant and in the same direction as the distance, so
W = Fs
s = s0 + v0t + a(t^2)/2
s0 = 0, v0 = 0,
W = Fa(t^2)/2
P(average) = W/t = Fat/2
P = (600 N)(0.08 distance / time^2)( 1 min)(1/2)(m/distance)(time/min)(time/sec)(watt-sec/Nm)
If a = 0.08 m/s^2
P = (600 N)(0.08 m/sec^2)(60 s)(1/2)(watt-sec/Nm)
Calculate to 3 significant figures.

Answer 2

Power= Work Done/ Time Taken

Work Done= Force X Distance

Distance= Speed X Time

Work your way from the distance part. You should figure it out already =) hope it helps.

Answer 3

Work is force*distance and from the work, there is an equation in your book to calculate power.