Recent content by jayberd

so I end up having to solve for 0km/hr=90km/hr+axt but where does t come from? s=dt? or can I use displacement in terms of velocity?

Problem: A race car skidding out of control manages to slow down to 90km/h before crashing head-on into a brick wall. Fortunately, the driver is wearing a safety harness. Using reasonable values for the mass of the driver and the stopping distance, estimate the average force exerted on the...