1. particle travels between two parallel ver-
tical walls separated by 10 m. It moves to-
ward the opposing wall at a constant rate of
5.7 m/s. It hits the opposite wall at the same
The acceleration of gravity is 9.8 m/s2 .
At what angle with the wall will the particle
Answer in units of ?.

2.A dart gun is fired while being held hori-
zontally at a height of 0.506 m above ground
level, and at rest relative to the ground. The
dart from the gun travels a horizontal dis-
tance of 3.07 m. A child holds the same gun
in a horizontal position while sliding down a
51.9? incline at a constant speed of 3.1 m/s.
The acceleration of gravity is 9.8 m/s2 .
What horizontal distance x will the dart
travel if the child fires the gun forward when
it is 0.862 m above the ground?
Answer in units of m.
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Answers (1)