tolong dijawab dong. jangan lupa pakai caranya

nomer
1. a (karena usaha harus melakukan perpindahan )

2. W = Fx s
= 500 x 10
= 5000 J (d)

3. W = F x s
s = W/F
s = 15.000/500
s = 30 m (b)

4. W = Fxs
= 7000 x 10
= 70.000

P = W/t
= 70.000/35
= 2000watt (a)