A 1,000 kg car traveling at 40 m/s collides with a brick wall. The car is in contact with the wall for 0.08 seconds before it bounces back with a smaller velocity. Which of the following would result in smallest contact force from the wall on the car? Group of answer choices Increasing the contact time to 3 seconds Decreasing the car’s velocity to 20 m/s Decreasing the contact time to 0.004 seconds Decreasing the car’s mass to 500 kg

Q: A 2.0 KG volleyball is spiked to you at 10 M/S you hit the ball back along the same path and at the…

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Q: A steady force impacts a 0.85 kg ball resting on the ground. The impact lasts 0.36 seconds,…

A: Given Data, Mass of the ball (m)=0.85 kg Time duration (∆t=0.36 s Velocity (v)=3.1 m/s

Q: A 0.020-kg bullet traveling at a speed of embeds in a 1.0-kg wooden block resting on a horizontal…

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Q: block of mass m1 = 14.5 kg slides along a horizontal surface (with friction, μk = 0.21) a distance d…

A: Mass of block 1 = m1 = 14.5 kg Mass of block 2 =m2 = 8.75 kg μk= 0.21 Distance traveled by block 1 =…

Q: A car (500 kg) rolls down a 3 degree incline hill a distance of 100 meters with negligible friction.…

A: Given Masses of the car m1 = 500kg m2 = 900 kg Angle of the incline θ = 3o Length of the incline L =…

Q: During a practice dive, a 53-kgkg diver jumped to a maximum height of 4.7 mm above the water before…

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Q: Mike's car, which weighs 1,000 kg, is out of gas. Mike is trying to push the car to a gas station,…

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Q: An arrow with a mass of 250 g has a speed of 27 m/s before it passes through a 1.5 cm piece of…

A: MA = Mass = 250 g = 0.250 Kg , Vi = Velocity = 27 m/s T = d = thickness = 1.5 cm = 0.015 m Vf =…

Q: To help reduce severity of accidents, an engineering company designs large plastic barrels filled…

A: The 1200 kg car is initially travelling at 20 m/s, before it crashes into the barrels. As soon as…

Q: A person in a kayak starts paddling, and it accelerates from 0 to 0.621 m/s in a distance of 0.433…

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Q: Two beads are sliding freely on a horizontal rod. Use the following conditions. MA - 3 kg ma - 1 kg…

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Q: iv. Imagine that a 60.0 kg person is standing on a 40.0 kg cart, as shown in the diagram. Also on…

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Q: and the mass of the bag is 0.45 ??. The board is at an incline of 15° above the horizontal. a. Draw…

A: Given: m=0.45 kg θ=15o

Q: When serving a tennis ball, a player hits the ball when its velocity is zero (at the highest point…

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Q: A hungry 181 kg lion running northward at 78.2 km/hr attacks and holds onto a 38.0 kg Thomson's…

A: Lion's weight =181 kg Lion's speed=78.2 km/hr =21.72 m/s in north direction Gazelle weight =30 kg…

Q: In a performance test, each of two cars takes 9.6 s to accelerate from rest to 26 m/s. Car A has a…

A: According to Newton's Second Law of Motion, the net force acting on the object is equal to the…

Q: A 75.1-kg person diving into a pool enters the water vertically at 8.29 m/s. The water exerts an…

A: mass = 75.1 kg initial speed = 8.29 m/s net force = 1294 N t = 0.377 s

Q: A woman of mass m = 41 kg travels at a velocity vi = 1.5 m/s before leaping on a skateboard that is…

A: We can start by applying the principle of conservation of momentum, which states that the total…

Q: A running back (RB) of mass m1 = 98 kg is running at v1= (8.1m/s)ĵ LB towards the end zone. A…

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Q: You are driving your car which is 800 kg at a speed of 10 m/s and notice the breaks arenâ t working.…

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Q: Question 1 What is the force between a 3-kg bag of flour and a 5-kg bag of sugar that are 0.5 m…

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Q: 1. A tennis pro serves a tennis ball at a speed of 190 km/hr. a) Assuming that the tennis racquet…

A: Given:…

Q: Brad is the catcher for the Varsity baseball team. He exerts a forward force on the 0.145-kg…

A: Given: The mass of the baseball m = 0.145 kg. The initial velocity of the baseball is Vi = 38 m/s.…

Q: please use the equations provided to solve the following;   A bullet with mass m moving with an…

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Q: A 4.0-kg object is moving with a speed of 5.0 m/s, and a 5.0-kg object is moving with a speed of 4.0…

A: Given quantities: mass of object 1 (m) = 4 kg , mass of object 2 (M) = 5 kg velocity of object 1 (v)…

Q: A 4.2-g bullet leaves the muzzle of a rifle with a speed of 326 m/s. What force (assumed constant)…

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Q: A 75.0-kg person is riding in a car moving at 20.0 m/s when the car runs into a bridge abutment (see…

A: If a person is stopped by a padded dashboard that compresses on average by 1 cm, we need to…

Q: A rocket is fired vertically upward from the ground. The distance s in feet that the rocket travels…

A: "Since you have asked multiple questions, as per instructions to us, we will solve the first…

Q: A 50

A: Given values, Net force(F)=50N  Mass of object=20kg  Initial Velocity(u)=10m/sTime(t)=8sec

Q: QUESTION 23 A ping-pong ball is dropped vertically onto a stationary bowling ball resting on the…

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Q: A 1370 kg jeep traveling at 19 m/s can be stopped in 24.0 s by gently applying the brakes. a) What…

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Q: During an autumn storm, a 0.012 kg hail stone travelling at 20.0 m/s made a 0.20 cm deep dent in the…

A: Given Mass m = 0.012 kg Initial velocity u = 20 m/s Final velocity v =0 Distance covered s = 0.2 cm…

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: