(II) A 980-kg sports car collides into the rear end of a 2300-kgSUV stopped at a red light. The bumpers lock, the brakesare locked, and the two cars skid forward 2.6 m before stopping. The police officer, estimating the coefficient of kineticfriction between tires and road to be 0.80, calculates thespeed of the sports car at impact. What was that speed?

(II) A 980-kg sports car collides into the rear end of a 2300-kgSUV stopped at a red light. The bumpers lock, the brakesare locked, and the two cars skid forward 2.6 m before stopping. The police officer, estimating the coefficient of kineticfriction between tires and road to be 0.80, calculates thespeed of the sports car at impact. What was that speed?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 28P: Calculate the final speed of a 110-kg rugby player who is initially running at 8.00 m/s butt...

See similar textbooks

Related questions

Q: ost of us know intuitively that in a head-on collision between a large dump truck and a subcompact…

A: Given that Mass of each person, m=70 kg Mass of car including person, mc=800 kg Mass of the truck,…

Q: Calculate th avarage forca in ) on the person he is stopped by a padded dashboard that comprasses an…

A: The average force is the force exerted by some object moving at some defined rate of speed i.e.…

Q: ost of us know intuitively that in a head-on collision between a large dump truck and a subcompact…

A: We know that :

Q: You are the design engineer in charge of the crashworthinessof new automobile models. Cars are…

Q: bullet of mass 3.0g moving at 350m/s hits a tree and penetrates through a distance of 12 cm before…

Q: A car moving at 20.0 m/s (72.0 km/h) crashes into a tree. Find th magnitude of the average force…

A: Solution: The initial velocity of the car is vi = 20 m/s The final velocity of the car is vf = 0 m/s…

Q: (II) A 28-g rifle bullet traveling 190 m/s embeds itself in a3.1-kg pendulum hanging on a 2.8-m-long…

Q: (1) Two bullets are fired, one 0.020 kg from a 5kg riffle, the other 0.015 kg, from a 2 k revolver.…

A: The mass of the rifle: The mass of the bullet fired from the rifle: The mass of the revolver (a…

Q: Astronomers estimate that a 2.0-km-diameter asteroid collideswith the Earth once every million…

Q: A child in a boat throws a 5.7kg package out horiontally with a speed of 10.0m/s. Calculate the…

Q: AntiBallistic missiles (ABMS) Are designed have very large acceleration so that they may intercept…

Q: A car heading north collides at an intersection with a truck of the same mass as the car heading…

A: The mass of the truck = the mass of the car = m Velocity of both the car and truck locked together…

Q: A 2.00kg mass moving to the right at 3.00 m/s, catches up and collides with a mass of 4.00 kg also…

A: apply force momentum relation

Q: (III) Air in a 120-km/h wind strikes head-on the face of abuilding 45 m wide by 75 m high and is…

A: Given:Air wind strikes = 120-km/hWide = 45 mHigh = 75 mMass = 1.3 kg

Q: In the figure, blocki of mass m, slides from rest along a frictionless ramp from height h- 23mand…

Q: A diver with a weight of 833 N dives from a boat with a mass of 375kg. If he leaves the boat with a…

Q: 15-87. The "stone" A used in the sport of curling slides over the ice track and strikes another…

A: Given: Mass of stone A (mA) = Mass of stone B (mB) = 47 lb Initial velocity of A in x-axis(vA1)x =…

Q: A 900-kg small car slows down to 20.0 km/h to read a road sign. A 2400-kg passenger van following…

Q: A 0.145-kg baseball pitched at is hit on a horizontal line drive straight back at the pitcher at…

Q: (III) A uniform circular plate of radius 2R has a circular hole of radius R cut out of it. The…

A: The mass of plate A, mA=4πR2dρ The mass of plate B, mB=πR2dρ

Q: hen a 400kg car traveling att 30 m/s rear ends,colliding in elastic ally with an 800 kg truck…

A: Given values:- Mass of car,(mc)=400 kg ----(1) Initial speed of car,(u1)=20 m/sec ----(2) Mass of…

Q: In a collision between two cars, which would you expect tobe more damaging to the occupants: if the…

A: Collision of two cars

Q: (I) A constant friction force of 25 N acts on a 65-kg skierfor 15 s on level snow. What is the…

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. (a)…

Q: One study suggests that a brain concussion can occur if a person’s head is subjected to an…

Q: A 980-kg sports car collided into rear end of a 2300-kg SUV stopped at a red light. The bumpers…

A: Using Work-Energy theorem, velocity after the impact is,

Q: Car A of mass 1200 kg moving at 30 m s collides with a car B of mass 1500 kg moving at 20 m s' in…

Q: A 28-g bullet strikes and becomes embedded in a 1.35-kgblock of wood placed on a horizontal surface…

Q: . (I) A 7150-kg railroad car travels alone on a level frictionless track with a constant speed of…

A: Conservation of momentum: It states that, in physics, generally the motion of an isolated object…

Question

(II) A 980-kg sports car collides into the rear end of a 2300-kg
SUV stopped at a red light. The bumpers lock, the brakes
are locked, and the two cars skid forward 2.6 m before stopping. The police officer, estimating the coefficient of kinetic
friction between tires and road to be 0.80, calculates the
speed of the sports car at impact. What was that speed?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Check Your Understanding What if we had assumed the phone did bounce on impact? Would this have increased the force on the iPhone, decreased it, or made no difference?
Which has a larger magnitude of momentum: a 3000-kg elephant moving at 40 km/h or a 60-kg cheetah moving at 112 km/h?
Calculate the final speed of a 110-kg rugby player who is initially running at 8.00 m/s butt collides head-on with a padded goalpost and experiences a backward force of l.76104N for 5.50102s .
A 2000-kg railway freight car coasts at 4.4 m/s underneath a grain terminal, which dumps grain directly down into the freight car. If the speed of the loaded freight car must not go below 3.0 m/s, what is the maximum mass of grain that it can accept?
Check Your Understanding Suppose there had been no friction (the collision happened on ice); that would make k zero, and thus vc.f=2kgd=0 , which is obviously wrong. What is the mistake in this conclusion?
What is the average momentum of a 70.0-kg sprinter who runs the 100-m dash in 9.65 s?
A rocket takes off from Earth and reaches a speed of 100 m/s in 10.0 s. If the exhaust speed is 1500 m/s and the mass of fuel burned is 100 kg, what was the initial mass of the rocket?
If 1 of the Earth’s mass were transferred to the Moon, how far would the center of mass of the Earth-Moon-population system move? The mass of the Earth is 5.971024kg and that of the Moon is 7.341022kg . The radius of the Moon’s orbit is about 3.84105m .
(I) A constant friction force of 25 N acts on a 65-kg skierfor 15 s on level snow. What is the skier’s change in velocity?
A car moving at 20.0 m/s (72.0 km/h) crashes into a tree. Find th magnitude of the average force acting on a passenger of mass 70 kg in eat of the following cases. (a) The passenger is not wearing a seat belt. Hel brought to rest by a collision with the windshield and dashboard that las 2.0 ms. (b) The car is equipped with a passenger-side air bag. The forced to the air bag acts for 45 ms, bringing the passenger to rest. ( (a) 7.0 x 10° N (b) 3.1 x 10' N)
AntiBallistic missiles (ABMS) Are designed have very large acceleration so that they may intercept fast moving incoming missiles in the short time available.(a) what is the takeoff acceleration, in meters per square second, of a 13500-kg ABM that expels 196 kg of gas per second add an exhaust speed of 2.4x10^3 m/s?
A 0.145-kg baseball pitched at is hit on a horizontal line drive straight back at the pitcher at 46.0 m/s If the contact time between bat and ball is 5.0 x 10-3 s calculate the force (assumed to be constant) between the ball and bat.