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 ball rolls onto the path of your car as you drive down a quiet neighborhood street. To avoid…

A:

Q: Question 1 gg Drop Experiment. An experiment is done to determine the average force of impact needed…

A: Mass of the  egg (m) = 50 g  Height of fall (h) = 0.200 m Time of impact (∆t) = 0.015 s

Q: Complete the sentences correctly. Stunt car A and stunt car B are identical cars with the same mass…

A: GIVEN:

Q: A 54.0 kg person is riding in a car moving at 21.0 m/s when the car runs into a bridge abutment.…

A: Given data:  Mass of person (m) = 54.0 kg Initial velocity (Vi) = 21.0 m/s Final velocity (Vf) = 0…

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 100 N net force acts right on a 5 kg object through a displacement of 20 m right. The initial…

A:

Q: 4. A car moving at 20.0 m/s crashes into a tree. Find the magnitude of the average force acting on a…

A: Given:           initial speed = 20 m/s                mass = m = 65 kg                Force =…

Q: the magnitude of the average force applied to the ball?

A:

Q: A 100 N net force acts right on a 5 kg object through a displacement of 30 m right. The initial…

A:

Q: In a slap shot in hockey, the stick and puck are only in contact for 0.030 s. During this time, the…

A:

Q: A loaded truck collides with a car causing huge damage to the car. Which of the following is true…

A: It is mentioned that:A loaded truck collides with a car causing huge damage to the car.To choose the…

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: 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: The driver of a three wheeler with a speed of 36km/h sees a child in the middle of the road and…

A: Given :             Mass of three wheeler m = 400 kg             Mass of the driver m = 65 kg…

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 girl (mass = 60 kg ) falls freely from rest and strikes the ground . During the collision with the…

A:

Q: A 1.75kg basketball with an initial velocity of -8.00m/s hits the floor that applies a force given…

A: Given:- A 1.75kg basketball with an initial velocity of -8.00m/s hits the floor that applies a force…

Q: The figure shows a car and a truck traveling in the same direction. The car, moving faster than the…

A:

Q: Set 1..

A: Given : m = 60 kg vo = 13.4 m/s (130 mi/h) s = 0.65 m v = 0 (because finally the dummy stops)

Q: A .22 rifle bullet, traveling at 300m/s strikes a large tree, which it penetrates to a depth of 10…

A: Velocity=300m/s Mass of bullet=2g

Q: In an experiment, two carts equipped with accelerometers and force sensors are sent towards one…

A: When two cars collide with each other then they exert force on each other.

Q: A force of 36 Newtons causes an object to accelerate from rest to a speed of 12 m/s in 6.0 seconds.…

A: Given  Force F=36 N Final speed v=12m/s time t=6s

Q: Current Attempt in Progress A student (m = 58 kg) falls freely from rest and strikes the ground.…

A: We know the mass of the student. We are given the force exerted by ground and also time this force…

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

A:

Q: ectron with a speed of 2.0 × 10' m/s moves horizontally into a region where a constant vertical…

A: acceleration a = F/m

Q: A 50.0 kg driver is riding at 35.0 m/s in her red sports car when she must suddenly slam on the…

A: Given, mass of driver =m=50 kg riding speed=U=35 m/s As we know that impulsive force =change in…

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

A:

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: The mass of the person,   The initial velocity of the car,   The final velocity of the car,

Q: 1. A large semi truck has a mass of 35,000 kg. It collides head on with a car that has a mass of…

A:

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: Block A with a mass of 2.0 kg is moving to the right at 6 m/s. It collides with block B with a mass…

A: Given data:  Mass of block A (ma) = 2.0 kg Initial velocity of block A (V0A) = 6 m/s Final velocity…

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: A 0.21 kg ball travelling due west at 35 m/s was hit by a bat and as a result the ball travelled due…

A:

Q: A car moving at 15 m/s crashes into a tree stops in 1.02 as the mass of the passenger inside is 74…

A:

Q: A soccer player kicks a 0.4 kg ball from rest towards the opposing team's net. The ball has a…

A: Given: The mass of the ball is 0.4 kg. The initial speed of the ball is 0 m/s. The final speed of…

Q: The figure below is for a 5 kg object. v(m/s) 50.0 40.0 30.0 20.0 10.0 2.0 4.0 6.0 t(s) a) Find the…

A:

Q: Kara Moore was applying make up in the parking lot Unaware that Lisa's car was stopped in her lane…

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Q: Alice has a mass of 62.0 kg and Bob has a mass of 84.0 kg and they are initially standing at rest…

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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 1000kg 'Smart Car' is stopped at an intersection. A large 4000kg SUV approaches from behind with a…

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Q: A bullet has a mass of 2.7 g and a muzzle velocity of 1150 ft/s. If fired horizontally, it can…

A: Solution: Given that m = 2.7 g = 2.7 x 10-3 kg v = 1150 ft/s = 350.52 m/s thickness, t = 0.8 inch =…

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: