how far will a freely falling object fall from rest in four seconds and how far will it fall in 10 seconds.

Q: If an object falls from the top of the building, what will its speed be after 2.60 seconds?

A: Given data: Initial velocity (V0) = 0 m/s Time (t) = 2.60 s Required: The final velocity(v)

Q: How does a skydiver reduce the force on his body while landing? decreasing his mass increasing his…

A: When a skydiver falls he accelerates downward. His velocity increases every moment as gravity acts…

Q: Over the short time span of a tennis ballI hitting the racket during a player's serve, the ball's…

A: Over a short span of time tennis ball hitting the target

Q: Place a heavy book on a table and the table pushes up on the book. Why doesn’t this upward push…

A:

Q: School bus drivers are extra careful when they cross railroad tracks. They stop before they cross…

A: If the train  usually move slower than cars , the train do more damage then car ,if they hit…

Q: A car moving at 20 m/s crashes into a tree and stops in 0.26s. Calculate the force the seat belt…

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Q: How do we reduce force and acceleration in a collision?

A: Reduce force:- We know that the force in a collision reducing by extending the time of the collision…

Q: An object falls off a cliff (ignore air resistance), what remains constant?

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Q: A bag falls from an airplane flying horizontally at an altitude of 490 meters. When will it strike…

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Q: ball is thrown toward a building

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Q: A total of 4900 J is expended in lifting a 50 kg mass

A: Given.  The energy expanded, E = 4900 J mass, m = 50 kg

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: When the velocity of a moving object is doubled,

A: Required  : When the velocity of a moving object is doubled ..

Q: What happens when a moving bumper car collides with a stationary bumper car?

A: The bumper cars are powered by electricity, which is conducted by a pole on the rear of the vehicle…

Q: Will a real cart gain speed faster going down a given ramp than it loses speed on the way up, or the…

A: Let F= force applied on both forces. fk is the kinetic friction

Q: 7. A body of mass 3 kg falls from a height of 45 cmabove the ground. Calculate its velocity when it…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: how can two objects with different masses, when dropped from the same height, hit the ground at the…

A: Time of flight for an object to reach ground is given by,

Q: A 0.20-kg hockey puck initially traveling 5.0 m/s is pushed on ice by a hockey stick with a constant…

A:

Q: What is the gain in the speed per second for a freely falling body?

A: the expression for the velocity for a freeling falling body is

Q: A cricket ball has a mass of 0.16 kg. The ball travels at 30 m/s. The ball is hit by a bat with of…

A: Givenmass of cricket ball, m=0.16 kgInitial velocity of ball, u=30 m/sForce acting on ball, F=10800…

Q: If you throw a ball upwards it will eventually slow down and fall,why is that so?

A: If we thrown an object in space, it will keep moving far forever and never return, because there is…

Q: Calculate the force needed to speed up a car with a rate of 5ms, if the mass of the car is 1000 kg.

A: According to Newton's 2nd Law:   F = ma                                 ...... (1)               (…

Q: An object falls freely for 25 seconds. Calculate the velocity after 25 seconds.

A: time for which object has fallen, t= 25 sec acceleration of object, g=10 m/s2          ( as its…

Q: If the mass of an object is doubled, what happens to the acceleration?

A: For a constant force, if mass gets doubled then acceleration will get half.   Mathematically: F=ma…

Q: Two bodies of mass 4 kg and 6 kg are tied to the ends of massless string. The string passes over a…

A: Given, Two bodies of mass = 4 kg and 6 kg

Q: When you catch a water balloon, it’s best to start with your hand in motion, moving with the…

A: The goal is to reduce the momentum of the balloon to zero, so you should apply an impulse to do…

Q: A person pushes a car that was stationary, with a mass of 400 kg, on flat ground, with a force of…

A:

Q: Does a baseball bat slow when it comes in contact with a ball traveling opposite of the baseball…

A: The baseball bat applies a force on the ball to change the direction of the ball, thus changing the…

Q: What exactly is meant by a ""freely falling"" object?"

A: A freely falling object is any object moving either upward or downward under the influence of…

Q: A ball dropped from rest onto a fixed horizontal plate rebounds to a height that is 81 percent of…

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Q: Place a heavybook on a table and the table pushes up on the book. Why doesn't this upward push cause…

A: Every massive object experience gravitational force on it due to gravity of earth. When two bodies…

Q: A meter stick is dropped from rest. How far does it fall in 2.5 s?

A: Answer              30.625 meter

Q: An object starts from rest and falls freely near earths surface fro 3.00 seconds. Calculate the…

A: According to the kinematics, the final speed of the object can be written as v=u+at…

Q: When you have increased the mass, what did you observe in the acceleration?

A: When mass of object is increased ,then acceleration decrease if force applied be constant .

Q: One stone is dropped from the top of a tall cliff and a second stone with the same mass is thrown…

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Q: of conservation of momentum. The bricks on top of the carts have the same mass as the cart. The…

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Q: If a person standing near a moving train, there is a danger that he will fall towards it. Explain.

A: If a person standing near a moving train, there is a danger that he will fall towards it because

Q: What happen to the speed of the bottle if you flip the half-filled bottle?

A: Let the mass of a fully filled bottle be M and mass of half filled bottle be M' where M>M'. Let…

Q: The mass of an object is a measure of its O a. inertia O b. energy O c. gravity O d. force

A: Here given the term mass . We have to define the significance of measure of mass.

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”