Answer:
average velocity = 6.25m/sec
Explanation:
given data:
for unopened
height = 625 m
time = 15 sec
for opened
height = 356 m
time = 142 sec
Unopened:
Opened:
we know that
Total Average Velocity
average velocity
average velocity = 6.25m/sec
downward direction.
The mass of the ball is 6.67 kg
Explanation:
The momentum of an object is given by:
where
p is the momentum
m is the mass of the object
v is its velocity
It must be noted that momentum is a vector quantity, so it has both magnitude and direction (but here only the magnitude is given).
For the ball in this problem, we have:
v = 1.5 m/s is its velocity
p = 10.0 kg m/s is its momentum
Solving the formula for m, we find the mass of the ball:
Learn more about momentum:
#LearnwithBrainly
Answer: The magnitude of the force is 5.4N
Explanation:
