A level mechanics

A van is travelling at 14 ms-1 along a straight road. At time t = 0, the van passes a car, which then sets off from rest travelling in the same direction as the van. The car accelerates uniformly to a velocity of 18 ms-1 in 20 seconds and then maintains this speed.
Draw a velocity time graph to show the motion of the van and the car & use it to find the number of seconds after setting off that the car overtakes the van.

Reply 1

chavvo

7

Original post by cool11111111111

A van is travelling at 14 ms-1 along a straight road. At time t = 0, the van passes a car, which then sets off from rest travelling in the same direction as the van. The car accelerates uniformly to a velocity of 18 ms-1 in 20 seconds and then maintains this speed.
Draw a velocity time graph to show the motion of the van and the car & use it to find the number of seconds after setting off that the car overtakes the van.

what have you tried so far?

Reply 2

cool11111111111

OP

2

Displacement of the point where they meet is the same, and the time is the same so I tried simletaneous equations to find out what these values are. I don't think this is giving the right answer