A stone is thrown upward at an angle. What happens to the vertical component of its velocity as it rises? As it falls?

Q: As your car reaches the top in a smoothly turning Ferris wheel, which way are you accelerating? What…

A: Introduction: Ferris wheel is a vertical circle motion. And circular motion encounter two type of…

Q: What is the centripetal acceleration of Mars as it orbits the Sun?

A: To move in a curved path, a planet must have an acceleration toward the center of the circle. This…

Q: If air drag can be ignored, at what point in its trajectory does a batted baseball have its minimum…

A: Ball will have minimum speed at the highest point of the trajectory. This is because, at highest…

Q: far does the boat travel during this time?

A: Given data; Acceleration in a straight line at a constant rate  a= 3.0 m s-2 Time,t= 8 secWhere…

Q: Why does a person in free fall experience weightlessness, while a person falling at terminal…

A: A person experiences weightlessness when the only force acting on him is the gravitational force and…

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

A:

Q: Which has greater monetary value, a newton of gold on Earth or a newton of gold on the Moon?

A: Weight is,

Q: Given that 1 kg = 2.2 lbs, 1 m = 3.28 ft, express: my height 5’7”, in meters; a speed of 65 mph in…

A: Answer:   Given Data:

Q: What law tells us why we should buckle up?

A:

Q: when the radius is increased, does the period of rotation increase or decrease?    When the radius…

A: When the radius is increased the period of rotation will also increases as the radius and the period…

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: A child attaches a rubber ball to a string and it whirls it around in a circle overhead. If the…

A: The length of the string is r = 0.5 m. The velocity of the ball is v = 10 m/s.

Q: eed answers ASAP... A car which is initially at rest travels 1,400 meters in 20 seconds. Find its…

A: Given: The intial velocity of the car is 0 m/s. The distance traveled by the car is 1400 m. The time…

Q: Why is it that if the centripetal force on an object increases, its acceleration increases? O ts…

A: Let the centripetal force = F  Let the mass of object in motion = m  Let the velocity of object = v…

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: What supplies the centripetal force for a satellite in orbit around the Earth?

A: The centripetal force to hold a satellite in orbit about the earth is supplied by gravity.…

Q: What is the difference between centripetal acceleration and centrifugal force?

A: For an object moving in a circular path, even the speed is constant, it will experience acceleration…

Q: What is the centripetal acceleration that a girl experiences while sitting in a merry go round if…

A: Given that, speed is 5m/s and radius of motion is 2.4 m.

Q: If you lose your grip on a rapidly spinning merry-go-round and fall off, in which direction will you…

A: If you lose your grip on a rapidly spinning merry-go-round and fall off, the motion is in the…

Q: astronauts appear wieghtless in space becaue 1. there is no gravity 2.there is no floor pushing…

A: To determine: Correct option for the given statement.

Q: For orbits of greater altitude, is the period longer or shorter?

A: Kepler’s third law of planetary motion gives,

Q: A projectile falls beneath the straight-line path it would follow if there were no gravity. How many…

A: When t=1sec, s=12gt2s=129.812s=4.9m

Q: Are we accelerating as a consequence of the Earth spinning on its axis

A:

Q: While an apple falls out of a tree, does the earth remain stationary or does it accelerate upwards ?

A: Gravitational force between apple and earth is F= GMm/r2 .  Where G is gravitational constant  M is…

Q: Who among the choices will be able to lift the weight?

A: To solve this we find if the moment generated by the muscle at the joint is greater than or equal to…

Q: A 0.5 kg ball rotates at a constant speed of 6 m/s on the end of 1.2 m long string. The string…

A: The centripetal acceleration is 30 m/s^2

Q: Suppose an object is dropped from a height h (h < RĘ, where Rp is the radius of Earth). Show that…

A:

Q: The force of gravity is 6 times greater on the earth than it is on the moon. What is the weight of a…

A: Given The force of gravity is 6 times greater on the earth than it is on the moon mass of a man = m…

Q: What is exhilaration of a rock thrown upward on the way up? At the top of his flight? On the way…

A: suppose there is no air friction, the rock is thrown upward direction and the earth will pull it…

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: Four golf balls are hit at different speeds and at different angles. Which situation below results…

A: Given,  Angle A1= 70° Angle A2 = 60° Angle A3 = 45°  v1 = 15 m/s v2 = 20 m/s  v3 = 24 m/s  We will…

Q: What is centripetal acceleration?

A:

Q: A tomato is thrown upward. As it rises, the gravitational force does

A:

Q: 800 kg 10 m/s 80 m 20m 35 m

A:

Q: If you change the speed of rotation, what would happen to the centripetal force?

A:

Q: How does a centripetal force differ from a centrifugal force with reference to the direction in…

A: Both centripetal force and centrifugal force are associated with circular motion. They are acting in…

Q: A ball is thrown horizontally from a cliff at a speed of 20 m per 2nd ,what will it speed the after…

A:

Q: if you drop a feather on and a steel hammer at the same moment, they should hit the ground at the…

A: The second equation of motion is  where, s is the distance, u is the initial velocity, t is the…

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.