A projectile is launched from the Earth surface with a certain initial velocity and moves without air resistance. Another projectile is launched with the same initial velocity from the Moon surface, where the acceleration due to gravity is one sixth as large. How does the maximum altitude of the projectile on the Moon compare with that of the projectile on the Earth?
a.
It is one-sixth as large
b.
It is the same
c.
It is 6th times larger
d.
none of (a), (b) and (c)
1 points
QUESTION 21
A bouncing ball of mass m strikes the ground with a speed v m/s and rebounds straight back after a 20% speed loss. The impulse it receives from the ground is
a.
0 m/s
b.
0.8m.v
c.
1.8 m.v
d.
m.v
