Determine the power required for a 1150-kg car to climb a 100-m-long uphill road with a slope of 308 (from horizontal) in 12 s (a) at a constant velocity, (b) from rest to a final velocity of 30 m/s, and (c) from 35 m/s to a final velocity of 5 m/s. disregard friction, air drag, and rolling resistance

Part a)

Power is defined as rate of work done

here we know that

so power is given as

Part b)

net work done on the block = change in kinetic energy

so power is given by

Part c)

Part b)

net work done on the block = change in kinetic energy

so power is given by

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

gravity

explanation: