A cart is given a quick tap and then gradually slows down due to friction. The strength of the friction force acting during the time of the tap is the same as the friction force acting after the tap.
a. The table (on the right) gives velocity-time data for the cart. Use this data to plot a velocity-time graph of the cart's motion.
b. Calculate the acceleration of the cart during the tap (from 1 s to 1. 5 s)
c. Calculate the acceleration of the cart after the tap (from 1. 5 s to 4. 0 s)
d. The cart has a mass of 0. 25 kg. Calculate the net force acting on the cart when it is speeding up.
e. Calculate the net force acting on the cart when it is slowing down.
f. Given your calculated value of friction force (and remember that the same strength friction force is acting when the cart is given a tap to speed up), find the strength of the tap force.
g. Draw a force diagram for the time when the cart is speeding up. Label the force arrows with the strength of each force.