There are two basic equations you need to use: W = Fd where W is the work done in joules, F is the force in Newtons, and d is the distance in meters.

The other is Power = W/t, where power is measured in watts (W), work in joules (J),...

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There are two basic equations you need to use: W = Fd where W is the work done in joules, F is the force in Newtons, and d is the distance in meters.

The other is Power = W/t, where power is measured in watts (W), work in joules (J), and time in seconds (s)

1a. W = 3650 J, F = 2470 N, find d

d = W/F = 3650/2470 = 1.478 m

1b. P = W/t W = 3650 J, t = 4 s

P = 3650/4 = 912.5 W (1 hp = 746 W) so this is equal to 1.22 HP)

2. I think the length is probably 3.05 m, not cm.

W = Fd w = 1600J, d = 3.05 m, find F

F = W/d = 1600/3.05 = 524.6 N

3. this is a two part problem. First find W, then find time.

W = Fd = 334 N * 50 m = 16700 J

P = W/t

P = 3.71 kW = 3710 W

3710 = 16700/t

t = 16700/3710 = 4.5 s

4. W = Fd

W = 27200 J, F = 715N, find d

d = W/f = 27200/715 =38.04 m

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