Answer:
a. 3 m/s
Explanation:
The magnitude of the momentum of an object is given by:
where
m is the mass of the object
v is the speed of the object
For the ball in this problem, we know:
p = 12 kg m/s is the momentum
m = 4 kg is the mass
Solving the equation for v, the speed, we find:
Answer: The velocity with which the sand throw is 24.2 m/s.
Explanation:
Explanation:
acceleration due to gravity, a = 3.9 m/s2
height, h = 75 m
final velocity, v = 0
Let the initial velocity at the time of throw is u.
Use third equation of motion
The velocity with which the sand throw is 24.2 m/s.
Answer:
It takes a little, be patient.
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