You roll a bowling ball down the lane and it takes 23 seconds to reach the pins. What is the total time it takes the ball to mov
2 answers:
Answer:
t = 23 seconds
Explanation:
It is given that, you roll a bowling ball down the lane and it takes 23 seconds to reach the pins. The ball moves under the action of gravity. The value of acceleration due to gravity on the surface of Earth is
The total time taken by the ball to move is equal to the time taken by th bowling ball down the lane.
So, total time it takes the ball to move is 23 seconds.
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The new gravitation force at the new location is 40 N
Explanation:
The weight of the astronaut is given by the equation
(1)
where
m is the mass of the astronaut
g is the acceleration of gravity
The acceleration of gravity at a certain distance from the centre of the Earth is given by
where G is the gravitational constant and M is the Earth's mass. So we can rewrite eq.(1) as
When the astronaut is on the Earth's surface, (where R is the Earth's radius), so his weight is
Later, he moves to another location where his distance from the Earth's surface is 3 times the previous distance, so the new distance from the Earth's centre is
Therefore, the new weight is
Which means that his weight has decreased by a factor 16: therefore, the new weight is
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