A rubber ball with a mass 0.20 kg is dropped vertically from a height of 1.5 m above the floor. The ball bounces off of the floo
1 answer:
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Answer:
Net force acting on them is 16 N and it is acting to the right side.
Explanation:
It is given that,
Force acting by the dog, (right side)
Force acting by Simone , (backward)
Let backward direction is taken to be negative while right side is taken to be positive.
The net force will act in the direction where the magnitude of force is maximum. Net force is given by :
F = 16 N
So, the net force is 16 N and it is acting to the right side.
Answer:
It took the projectile 120 s to reach the maximum height.
Explanation:
Given;
maximum height of the projectile, s = 180 km = 180,000 m
initial speed of the projectile, u = 3 km/s = 3000 m/s
final velocity at maximum height, v = 0
Apply the following kinematic equation for average velocity of the projectile;
Therefore, it took the projectile 120 s to reach the maximum height.