# Question: an object is moving due south at 16 m s1...

###### Question details

An object is moving due south at 16 m s–1 , when a force accelerates it at 4 m s–2 in a southerly direction. How long will it take for the object to reach a velocity of 48 m s–1 south? 3 marks

4. An object is moving at 50 m s–1 north. A southerly force acts on it, producing an acceleration of 20 m s–2 in the direction of the force. After 10 s, what will the velocity of the object be? 4 marks

5. The average Australian car weight is about 1250 kg. The speed limit in built up areas is 50 kilometres per hour. Calculate the kinetic energy. 4 marks