Could I please get some help with this ?

Level 2 Complete the 3 questions below. Question 1 F. (N) A 595 g ball hits the floor with an impact speed of 6.80 m/s, and bounces upward with a speed leaving the floor of 3.76 m/s. The force versus time curve during the contact between the ball and the floor is shown above, where the maximum force Fmax = 390. N. How long was the ball in contact with the floor? O 16.1 ms O 8.06 ms O 32.2 ms O 5.74 ms Question 2 A 3.80 kg object, travelling at 6.80 m/s to the right, suddenly explodes into two pieces. The 0.860 kg piece moves to the right at 9.40 m/s after the explosion; What is the speed of the 2.94 kg piece? O 20.6 m/s O 8.93 m/s O 11.5 m/s O 6.04 m/s Question 3 A missile is fired form the back of a stationary truck. The missile takes off at a speed of 56.7 m/s and has a mass of 52.1 kg. If the truck has a mass of 1.50*105 kg, what is the recoil speed of the truck? O 25.5 m/s O 1.90 m/s O 1.97 m/s O 0.919 m/s