Author Question: A cannon of mass 1 300 kg fires a 13.6-kg shell with a velocity of 180 m/s at an angle of 45 above ... (Read 133 times)

jrubin · **on:** Jul 28, 2018

A cannon of mass 1 300 kg fires a 13.6-kg shell with a velocity of 180 m/s at an angle of 45 above the horizontal. Find the recoil velocity of the cannon across the level ground.
a. 1.88 m/s
b. 1.33 m/s
c. 0.376 m/s
d. 0.666 m/s
e. 0.942 m/s

Question 2

A 75.0-kg swimmer dives horizontally off a 465-kg raft initially at rest. If the diver's speed immediately after leaving the raft is 5.00 m/s, what is the corresponding raft speed?
a. 31.0 m/s
b. 375 m/s
c. 0.806 m/s
d. 1.24 m/s
e. 5.00 m/s