Please answer the following question-

Energy and Power:

Q1 . A plane is dropping packets of aid as it flies over a flooded village. The speed of a packet when it leaves the plane is 60 m 5-1. The packet has mass 25 kg. The packet falls a vertical distance of 34 metres to reach the ground. (a) Calculate the kinetic energy of the packet when it leaves the plane. (2) (b) Calculate the potential energy lost by the packet as it falls to the ground. (2) (c) Assume that the effect of air resistance on the packet as it falls can be neglected. (i) Find the kinetic energy of the packet when it reaches the ground. (2) (ii) Hence nd the speed of the packet when it reaches the ground. (2) (Total 8 marks) Q2. When a car, of mass 1200 kg, travels at a speed of vm 5-1 it experiences a total resistive force which can be modelled as being of magnitude 36 vnewtons. The maximum power of the car is 90 kilowatts. The car starts to descend a hill, inclined at 52 to the horizontal, along a straight road. Find the maximum speed of the car down this hill. (Total 5 marks)