Help me please!! 1. The problem statement, all variables and given/known data Q1.A person of mass 80kg is travelling in a car with a velocity of 25m.s the car is involved in a head on collision and brought rapidly to a halt. Neglecting frictional forces effects. Calculate (a) a person momentum just prior to impact (b) the resulting force if the impact time is 0.005s Q2.A 70kg person falls from a height of 1m if they land 'stiff legged' the body will come to rest in 0.005s what force will the person's leg experience? Q3.A 5kg mass falls through 5m and falls on pedestrians head coming to a halt within 0.2s of the initial impact. calculate the force of impact on the pedestrians skull. 2. Relevant equations force(change in time) = mass(change in velocity) 3. The attempt at a solution I just have the answers to these questions I need some explanation !!