Sam rolls a ball off a tabletop. Compared with a slow roll , will a faster-moving ball hit the floor with a higher speed? Defend your answer.

Q: Is the force of gravity stronger on piece of iron than on the piece of wood if both have the same…

A: The force of gravity between the two object masses is,From the above expression, it is clear that…

Q: A firefighter of mass 80kg slides down a vertical pole with an acceleration of 4m/(s^2). Show that…

A: As per question, firefighter slides down a vertical pole.Therefore, two forces acting on…

Q: Suppose you roll a ball off a tabletop. Will the time to hit the floor depend on the speed of the…

A: Answer Rolling speed does not affect the time to hit the floor

Q: Two golfers each hit a ball at the same speed, but one at 60° with the horizontal and the other at…

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Q: A tennis player hits a ball when it is at a height of 0.6 metres above the court, giving it a…

A:

Q: Why do you think seat belt is important? Relate this to physics

A: Newton's first law of motion : Newton’s first law states that if a body is at rest or moving at a…

Q: What is something that can stay in the air the longest and fly the farthest?

A: Common Swift is the bird which can stay for 10 months in air.

Q: Why doesn't the force of gravity change the speed of a bowling ball as it rolls along a bowling…

A: The gravitational force that acts downward is balanced by the normal reaction of the floor of the…

Q: If you were in a freely falling elevator and you dropped a pencill, it would hover in front of you.…

A: It depends upon frame of reference the person. If you are falling along with the elevator, Force of…

Q: Consider a vertically launched projectile when air drag is negligible. When is the acceleration due…

A: When a projectile is launched vertically, it is only acted upon by gravity since air drag is…

Q: What happen to the speed of the bottle if you flip the bottle with full of water?

A: When we flip the bottle full of water the rotational speed of the water remains same. Answer -…

Q: Use the position function s(t) = −16t 2 + v0 t + s0 for free-falling objects.

A: The given position function is, s(t)=−16t2+v0t + s0----(1), Given projectile is shot upward from the…

Q: Another friend says that the Moon’s gravity would prevent rocks dropping from the Moon to Earth, but…

A: Since the distance between the Moon and the Earth is very large, thus, the Earth’s gravitational…

Q: Geremy rolled a can of soup off the kitchen table. The can landed 0.75 m from the table. The height…

A: Given Information:- Height of the table is h=1.35 m The can landed d=0.75 m  from the table.…

Q: Force of gravity ?

A: Given data: mass,m= 13.2 kgg= 10 m/s2Determine, a.  Force of gravity ? b.    Weight of block ?

Q: Another friend says that the Moon’s gravity would prevent rocks dropping from the Moon to Earth, but…

A: Solution:

Q: If there is no gravity on earth then what happens?

A: The gravity is the reason, the earth is holding up together. Without the force of gravity to hold it…

Q: Does a baseball bat slows down when it hits a ball? Defend your answer.

A: According to Newton’s second law of motion,

Q: What happens to its velocity when a coin is tossed upward while ascending? Its acceleration? (Ignore…

A: It is required to discuss the velocity of a coin tossed upwards and its acceleration while…

Q: A basketball player throws a ball at 6.5 m/s at an angle of 50° to the horizontal towards the net.…

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Q: Stand on a bathroom scale on a level floor, and the reading on the scale shows the gravitational…

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Q: Which requires less fuel, launching a rocket to escape speed from the Moon or from Earth? Defend…

A: Force of gravity defines the attractive force between any two objects. Here, the force of gravity…

Q: Two balls are rolling toward the edge of a table, with ball 1 rolling twice as fast as ball 2. Both…

A:

Q: A dropped ball loses PE as it falls. Gravity is an example of

A: The ball is dropped from a height h, its initial energy is the potential energy due to gravity, PE =…

Q: Gravity has a higher effect on what kind of vehicles?

A: Gravity is the force acts on the bodies which is due to the earth and towards the direction of…

Q: If Earth shrank with no change in its mass, what would happen to your weight at the surface?

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Q: What is a airplane that can stay in the air the longest and fly the farthest?

A: The factors like structure, weight, design can be helpful to fly longest and farthest.

Q: Give vector form of Newton's law of gravitation.

A: The vector form of the Newton’s law of gravitation is given by,

Q: A ball is thrown upward from the ground with a speed of 40ft/sec; at the same instant another ball…

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Q: How does gravity affect the skater who starts at a same height among the Earth, Moon and Jupiter?

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Q: A baseball projected with an initial velocity of 141 m/s at an angle of 45° follows a parabolic path…

A:

Q: Does a baseball bat slow down when it hits a ball? Defend your answer.

A: When the ball hits the momentum of the ball changes.

Q: A ball rolls off the edge of a table and hits the floor below. If the ball’s speed were somewhat…

A:

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.