A tennis ball with a velocity of 10.9 m/s to
the right is thrown perpendicularly at a wall.
After striking the wall, the ball rebounds in
the opposite direction with a velocity of −9.87
m/s to the left.
If the ball is in contact with the wall for
0.011 s, what is the average acceleration of
the ball while it is in contact with the wall?
Answer in units of m/s
You and a friend each drive 44 km to the
same destination. You travel at 89.2 km/h
and your friend at 95.9 km/h.
How long will your friend wait for you at
the end of the trip?
Answer in units of min
The average speed of an orbiting space shuttle
is 21100 mi/h. The shuttle is orbiting about
248 mi above the Earth’s surface. Assume the
Earth’s radius is 3963 mi.
How long does it take to circle the earth?
Answer in units of h
please help me i would be really grateful ps answer in thousandths place