3 A car of mass 1600 kg travels up a slope inclined at an angle of \(\sin ^ { - 1 } 0.08\) to the horizontal. There is a constant resistance of magnitude 240 N acting on the car.

1. It is given that the car travels at a constant speed of \(32 \mathrm {~ms} ^ { - 1 }\). Find the power of the engine of the car.
2. Find the acceleration of the car when its speed is \(24 \mathrm {~m} \mathrm {~s} ^ { - 1 }\) and the engine is working at 95\% of the power found in (a).