Two projectiles are launched from a cliff of height H = 16m as shown in the diagram below. Projectile 1 is launched with velocity v1 = 12 m/s at an angle q1, where q1 = 35 degrees. Projectile 2 is launched with velocity v2 = 12 m/s at an angle q2, where q2 = 50 degrees. The next six questions pertain to this physical situation.
9) If the projectiles are lauched at the same time, which projectile lands first?
Projectile 1 lands first.
Projectile 2 lands first.
The projectiles land at the same time.
10) What is the maximum height of projectile 2 above the ground?(not from the top of the cliff)
y = 7.9 m
y = 11.3 m
y = 20.3 m
y = 26.0 m
y = 38.4 m
11) At the top of projectile 2's path, what is its speed?
v = 0 m/s
v = 5.6 m/s
v = 7.7 m/s
v = 9.8 m/s
v = 12.0 m/s
12) How far from the cliff does projectile 2 land from the base of the cliff?
x = 19.1 m
x = 22.9 m
x = 27.5 m
x = 30.1 m
x = 31.3 m
13) Right before projectile 2 hits the ground, what is its speed?
v = 0 m/s
v = 12.0 m/s
v = 18.7 m/s
v = 21.4 m/s
v = 30.3 m/s
14) Which projectile lands farther away?
Projectile 1 lands farther away.
Projectile 2 lands farther away.
The projectiles land at the same distance from the cliff.
15) A car's initial velocity is along the -x (negative x) direction. As it slows to a stop, its acceleration:
is zero
points in the +x direction
points in the -x direction