A 200 kg wagon climbs up a hill of slope 30-degrees in 1 minute at a speed of 10 m/s. How much power is delivered by the engine? (Assume g = 10m/s2)
Answer & explanation
Correct answer: option 2
Weight of car = m x g
= 200 x 10 = 2000 N
Total force (F) = 2000 N
Velocity (v) = 10 m/s
P = F x v
= 2000 x 10 = 20000 W
= 20 kW.