Impulse & Momentum Problem Solving

0:00 - Problem 1 3:20 - Problem 2 5:06 - Problem 3 Pardon the focus for the first 30 seconds. Problem 1 - A 0.15 kg baseball is thrown with a speed of 20 m/s. It is hit straight back at the pitcher with a final speed of 22 m/s. What is the magnitude of the impulse delivered to the ball? Find the average force exerted by the bat on the ball if the two are in contact for 0.002 s. Problem 2 - A barefoot field-goal kicker imparts a speed of 35 m/s to a football initially at rest. If the football has a mass of 0.5 kg and the time of contact with the ball is 0.025 s, what is the magnitude of the force exerted by the ball on the kicker's foot? Problem 3 - The force of magnitude Fx acting the the x direction on a 5 kg particle varies in time as shown in the figure. Calculate the impulse of this force. Before the force is applied, the particle moves along the x axis with a velocity v1 = -6 m/s. Find the velocity v2 of the particle after the force stops acting on it.