No 2. A force of 40N is applied at the end of a wire fixed at one end to produce an extension of 0.24mm. if the original length and diameter of the wire are 3m and 2.0mm respectively, calculate the (a) stress on the wire (b) strain in the wire

Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?