After falling from rest from a height of 31 m, a 0.40-kg ball rebounds upward, reaching a height of 21 m. If the contact between ball and ground lasted 2.3 ms, what average force was exerted on the ball? (Enter the magnitude.)

Q: what average braking force is necessary to stop a 2,500 kg car travelling with an initial velocity…

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Q: The 150-kg block is being pushed by a force P as shown. Determine the total reaction in Newtons. P=…

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Q: Calculate the average force a bumper would have to exert to bring a 1000-kg car torest in 20 cm when…

A: Given data: The mass is m = 1000 kg The initial speed is u = 8 m/s The displacement is h = 0.20 m…

Q: A 70.1 kg astronaut is holding a 8.1 kg tool pack while drifting at 10.4 m/s to the right. She…

A: Given data: The mass of astronaut is m=70.1 kg. Mass of tool pack is M=8.1 kg. Velocity of both is…

Q: During an accident between GMC and YARIS cars, the GMC acting average force of 106 N towards to the…

A: According to Newton's 3rd law third law  for every action (force) in nature there is an equal and…

Q: Rank the automobiles based on the magnitude of the force needed to stop them, from largest to…

A: As per the given data, There are six cars. Lets rank them as A,B,C,D,E and F starting from left to…

Q: While walking along Makati Avenue, you saw a moving car with initial speed of 28 m/s . The car is…

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Q: Rafael drops a hard rubber ball, of mass m = 310 g, onto the pavement. He drops it from a height h1…

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Q: A 0.145-kg baseball pitched horizontally at 27.0 m/s strikes a bat. If the contact time between bat…

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Q: In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and…

A: Given:  initial velocity, u = 0 m/s  final velocity, v = 45 m/s  time, t = 7 s  mass, m = 5.5 x 103…

Q: You swing a bat and hit a heavy box with a force of 1600 N. If the box moves when you hit it, the…

A: Given data: The force exerted by the bat on the box F = 1600 N

Q: Superman and Batman are on a sheet of iče, preparing for battle. Superman has a mass of 94 kg, and…

A: Given:- mass of the superman = 94 kg  mass of the badman = 117 kg   The force applied by superman on…

Q: A force of magnitude F acting in the x-direction on a 1.0-kg particle varies in time as shown in the…

A: Given, a force of magnitude F acting in the x-direction on a mass m = 1.0-kg particle varies in time…

Q: Sally throws a puck of mass m = 0.20 kg with an initial velocity i = 5.00i m/s along a horizontal…

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Q: Two iceboats (one of mass m, one of mass 2m) hold a race on a frictionless, horizontal, frozen lake.…

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Q: Rafael drops a hard rubber ball, of mass m = 110 g, onto the pavement. He drops it from a height h1…

A: (1) In this, we have to write the expression of magnitude of impulse.

Q: A shopper in a supermarket pushes a loaded cart with a horizontal force of 15.0 N. The cart has a…

A:

Q: A 0.145-kg baseball pitched horizontally at 27.0 m/s strikes a bat. If the contact time between bat…

A: Given data:  Mass (m) = 0.145 kg Initial Velocity (Vi) = 27.0 m/s Final velocity (Vf) = 0 m/s Time…

Q: 96. GO A person with a black belt in karate has a fist that has a mass of 0.70 kg. Starting from…

A: Given ,massm=0.7 kgvelocityv=8m/stimet=0.15 seconds

Q: If a fly collides with the windshield of a fast-moving bus, which experiences an impact force with a…

A: EXPLANATION- Because the mass of the fly is considered as little this means that the mass of fly is…

Q: A box, initially at rest, has 22.9 N of force exerted on it for 7.30 s. If the box has a mass of…

A: Given  Force (F) = 22.9 N  Mass (m) = 5.56 kg  Time (t) = 7.30 s    Acceleration of the box , a =…

Q: A 10 kg block with an initial velocity of 10 m/s slides 10 meters across a horizontal surface and…

A: Given information,mass of block, m=10kginitial velocity  , u=10m/sdistance , s= 10mtime ,  t=2sso…

Q: person with a black belt in karate has a fist that has a mass of 0.70 kg. Starting from rest, this…

A: given , mass (m) = 0.7 kg             initial velocity ( u ) = 0     { at rest }              final…

Q: A bullet of mass 20g traveling at 16m/s penetrates a sand bag and is brought to rest in 0.05s . Find…

A: A. Depth of penetration  is  0.4m B. Average  retarding  force is 6.4

Q: A 120-kg car starts at rest and accelerates forward, reaching a velocity of 1600 cm/s in 5 s. What…

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Q: What net external force is exerted on a 1100-kg artillery shell fired from a battleship if the shell…

A: Mass of artillery shell M=1100kg Acceleration of artillery shell 'a'= 2.40 x 10^4

Q: A block of mass 128 kg lies on a horizontal plane. A horizontal force F of magnitude 1073 N is…

A: Given  Mass of the block is m=128 kg Magnitude of the horizontal force is F=1073 N Distance traveled…

Q: Just before it is struck by a racket, a tennis ball weighing 0.560 N has a velocity of (20.0 m/s)i -…

A: It will be calculated with the help of impulse equation.

Q: A lump of clay of mass 0.21 kg is dropped from a height of 5.5 m. The clay comes to a full stop…

A: mass of clay is m = 0.21 Kg height from which clay was dropped is h = 5.5 m time taken by the clay…

Q: A block having a mass of 0.7 kg is at rest near the edge of a frictionless table 1.1 m high. A…

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Q: ) Box 1 has a mass of 1.20 kg and box 2 has a mass of 3.10 kg. In Case A, the floor exerts a force…

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Q: A block of mass m = 2.00 kg rests on the left edge of a block of mass M = 8.00 kg. The coefficient…

A: Given: Mass of a block, m=2.00 kg and mass of another block, M=8.00 kg. The coefficient of kinetic…

Q: Which of the following statements is correct? a. The greater the mass of rocket fuel burned, and…

A:

Q: A 0.25 kg arrow with a velocity of 12 m/s to the east strikes a target and pierces the bull's-eye of…

A: Given Mass of an arrow = 0.25 kg Initial velocity of an arrow = 12 m/s Mass of  target = 6 kg…

Q: A block of ice with a mass of 2.50 kg is moving on a frictionless, horizontal surface. At t = 0, the…

A: Given Data: The mass of the ice block is: m=2.50 kg The velocity of the block at t=0 is: v0=8 m/s

Q: Two bows, A and B, are used to fire arrows X and Y respectively. The average force bow A exerts is…

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Q: Sally throws a puck of mass m = 0.20 kg with an initial velocity u= 5.00i m/s along a horizontal…

A: Work done is equal to change in kinetic energy W=∆Ek-Fd=12m∆v2     Force exerted in the direction…

Q: A lump of clay of mass 0.21 kg is dropped from a height of 7.1 m. The clay comes to a full stop…

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Q: bject of mass 0.69 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a speed…

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Q: A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. The mass of…

A: Given data *The given mass of the ball is m = 0.38 kg *The given initial velocity is v1 = +2.20 m/s…

Q: After falling from rest from a height of 31 m, a 0.35-kg ball rebounds upward, reaching a height of…

A: The velocity relation is given in terms of distance, acceleration due to gravity. v1=2gh1=29.8…

Q: A car moves under a constant force of F=1500 N in the horizontal direction. a) If the mass of the…

A: In this question we are given that a car moves and a constant force of f=1500 N in the horizontal…

Q: 2. A block with mass m; = 4.00 kg and a ball with mass m2 =6.00 first second of motion if both…

A: Using FBD and equation from Laws of motion we solve as follows

Q: What is the magnitude of the average force, in newtons, exerted on a 0.0295-kg bullet to accelerate…

A: Calculate the change in momentum of the bullet. change in momentum = m(v2 - v1)…

Q: A car of mass 1200 kg is accelerated from rest to a speed of 72km/hr in 40 seconds . Calculate the…

A: Given: The mass of the car is 1200 kg.             The final speed is 72 km/hr.              The…

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?”