Answer:
The rolling basketball has greater momentum.
Explanation:
The momentum of an object is defined as the product of mass and velocity.
Given that the bowling mass has a greater mass than the basketball,
The bowling ball is at rest, so the velocity if the ball is zero.
The basketball is rolling, it has some velocity associated with it.
Therefore, the momentum of the bowling ball is zero.
The basketball has some momentum associated with it.
Hence, the rolling basketball has greater momentum.
Answer: What if though the Earth was not tilted? In this case the plane of the Earth's poles would always be perpendicular to the sun. The sun would always be just on the horizon 24 hours a day on every day at the poles. ... It would still be warm at the equator and cold at the poles.
Explanation: Hopefully this Helped
a. Average speed = distance / total time
distance = 38 meters (going away) + 38 meters (going back)
= 76 meters
total time = 9 seconds (going away) + 1.8 seconds (going
back) = 10.8 seconds
Average speed = 76 meters / 10.8 seconds = 7.04 m/s
b. Average
velocity = displacement / total time <span>
Displacement = Final position – Initial position
Initial position = 0 m
<span>Final position = 0 m (since it gallops back to the trainer)
Displacement = 0 m – 0 m = 0
total time = 10.8 seconds
<span>Average velocity = 0 / 10.8 = 0 m/s</span></span></span>
Answer:
The acceleration would be a=1 m/s^2. Let's explain why.
Explanation:
Let's say the block is □
20N→□ Block is pushed with a constant horizontal force of 20N
□←10N It is known that frictional force is the <u>opposite way</u> of the movement
So it is safe to say that there is 10 N force trying to stop the block.
In this case our net force is
According to <u>Newton's second motion law</u>
(m=mass, F=force, a=acceleration
→
As an extra information the block also applies gravitational m.g force down but since there is no other force applies in the vertical way, ground compansate the force.