A 1050 kg car is driving with a speed of 30 m/s. The driver sees a cop on the side of the road andslows down to a speed of 15 m/s in 3 s.a) What is the acceleration of the car?b) What is the force acting on the car?c) What is the impulse acting on the car?Remember to include the following when answering these questions:What did you get? (your answer with the correct units and supporting work)How did you get that? (the equation you chose to use to get your answer)Why did you use that? (the concept that supports the use of the equation that you chose to use)Edit ViewInsert Format ToolsTable12pt vParagraph vВUMacBook AirDEト

Answered: Image /qna-images/answer/4b05351b-995d-4f4c-9b49-51cbcc2791a9.jpg

A 1050 kg car is driving with a speed of 30 m/s. The driver sees a cop on the side of the road and slows down to a speed of 15 m/s in 3 s. a) What is the acceleration of the car? b) What is the force acting on the car? c) What is the impulse acting on the car?

A 1050 kg car is driving with a speed of 30 m/s. The driver sees a cop on the side of the road and slows down to a speed of 15 m/s in 3 s. a) What is the acceleration of the car? b) What is the force acting on the car? c) What is the impulse acting on the car?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

4) You drop a golf ball from a height of 1 m above the ground. It hits the ground and returns to a height of 0.5 m. Your friend makes the following argument: "The impulse Earth imparts to the golf ball as it falls must be larger than the impulse the ground imparts when the ball bounces because the time interval over which Earth exerts a force on the ball is much larger than the time interval over which the ground exerts a force on the ball." Draw one or more momentum bar charts and use them to explain either your friend is right or wrong.
A particle with a mass of 1.90 kg is acted on by a force Fx acting in the x-direction. If the magnitude of the force varies in time as shown in the figure below, determine the following. (a) impulse of the force (in kg · m/s ) kg · m/s (b) final velocity of the particle (in m/s) if it is initially at rest m/s (c) Find the final velocity of the particle (in m/s) if it is initially moving along the x-axis with a velocity of −25.00 m/s. m/s
1. a) If there is an external force acting on a system, can you please tell whether the momentum would be changed? If the momentum is changed, can you link the change in momentum to another physical quantity? 1 b) Define Impulse. Mention two units of Impulse. Is it a vector or scaler? If it is a vector, what would be the direction of impulse? 1 c) A golf ball with a mass 46.0 g strikes a wall with an initial speed of 140 km/h along –x- direction and bounces back at the speed of 145 km/h flying in xy plane, which makes 30° with the horizontal. Calculate the impulse vector in terms of magnitude and direction. If the duration of the collision is 0.900 ms, determine the magnitude of the average force acting on the ball during the collision. 2+1
Problem 2. A force acts on a 25.0 kg object with the magnitude as a function of time as shown in figure below. (a) Determine the impulse imparted by the force on the object between 0 and 30 seconds. (b) Determine the final velocity of the object if it had an initial velocity of 20.0 m/s in the negative direction. (c) Find the average force between t = 0 and 30 seconds. F,(N) 1000- t (s) 30 0- 10 20
In a dance jump, the dancer lifts their center of mass 40 cm. When they land, they bend their knees as they slow to a stop and their center of mass lowers by 7.0 cm in 50 ms. The dancer’s mass is 60 kg. (a) What is the impulse on their body as they land? (b) What is the average force on the dancer’s body? {3360 N}
A model rocket is constructed with a motor that can provide a total impulse of 26.0 N-s. The mass of the rocket is 0.117 kg. What is the speed that this rocket achieves when it is launched from rest? Neglect the effects of gravity and air resistance. Number i Units
An estimated force-time curve for a baseball struck by a bat is shown in the figure below. Let Fmax = 19,000 N, t₂ = 0.5 ms, and t = 3 ms. From this curve, determine the following. F (N) Fmax IA. t (ms) ta 0 (a) the magnitude of the impulse delivered to the ball N s (b) the average force exerted on the ball kN
If the impulse acting on a moving 100 kg object is zero, what does that mean about the velocity of the object? Recall that impulse is: F*t = m*Δv where Δv = vf - vi vf > vi vf = vi vf < vi Not enough information to determine.
An estimated force vs. time curve for a baseball struck by a bat is shown in the figure below. Fmax :18 000 N F (N) 20 000 %3D 15 000 10 000 5 000 t (ms) 2 1 (a) From this curve, determine the impulse delivered to the ball. 13500 Your response is off by a multiple of ten. N • s (b) From this curve, determine the average force exerted on the ball. 9000 Your response is off by a multiple of ten. kN
max 20,000 N, t, = 1.5 ms, and t, = 3 ms. From this curve, determine the An estimated force-time curve for a baseball struck by a bat is shown in the figure below. Let F, following. Fmax F (N) t (ms) ta (a) the magnitude of the impulse delivered to the ball N.s (b) the average force exerted on the ball kN
The net momentum provided to a body by a force is: a) defined only for elastic collisions. b) defined only for short-term interactions. c) the area under the curve in the graph of force versus position (F vs x for example). d) equal to the change in the linear momentum of the body.
4. The magnitude of the net force exerted in the x direction on a 4.00-kg particle varies in time as shown in the figure below. F (N) A 20 15 10 5 + 10 20 30 40 t (s) (a) Find the impulse of the force over the 40.0-s time interval. (b) Find the final velocity the particle attains if it is originally at rest. (c) Find the average force exerted on the particle for the time interval between 0 and 40.0 s.