/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q26DQ A very heavy SUV collides head-o... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

A very heavy SUV collides head-on with a very lightcompact car. Which of these statements about the collision arecorrect?

(a) The amount of kinetic energy lost by the SUV is equalto the amount of kinetic energy gained by the compact;

(b) theamount of momentum lost by the SUV is equal to the amount of

The momentum gained by the compact.

(c) The compact feels a considerably greater force during the collision than the SUV does;

(d) both cars lose the same amount of kinetic energy.

Short Answer

Expert verified

(a) Correct

(b) Correct

(c) Not correct

(d) Not correct.

Step by step solution

01

Collisions of objects.

In collisionsthe initial and final total momenta are equal.

In an elasticcollision, the initial and final total kinetic energies are also equal, andthe initial and final relative velocities have the same magnitude.

In an inelastic collision the total kinetic energy is less after the collision than before and if the two bodieshave the same final velocity, the collision is completely inelastic.

02

Discussion for part (a)

Considering the collision is elastic since in an elastic collision between two bodies the initial and final kinetic are equal therefore the amount of kinetic energy lost by SUB is equal to the amount of energy gained by the compact car.

03

Discussion for part (b)

Since in collision initial and final momentum are equal therefore the amount of momentum lost by SUB is equal to the amount of momentum gained by the compact car.

04

Discussion for part (c)

Since every action has an equal and opposite reaction therefore the SUV and car bothfeel an equal amount of force.

05

Discussion for part (d)

Considering the collision is elastic since in an elastic collision between two bodies the initial and final kinetic are equal therefore the amount of kinetic energy lost by SUB is equal to the amount of energy gained by the compact car. So, both cars cannot lose the same amount of kinetic energy,

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

As a test of orienteering skills, your physics class holds a contest in a large, open field. Each contestant is told to travel 20.8 m due north from the starting point, then 38.0 m due east, and finally 18.0 m in the direction 33.0° west of south. After the specified displacements, a contestant will find a silver dollar hidden under a rock. The winner is the person who takes the shortest time to reach the location of the silver dollar. Remembering what you learned in class, you run on a straight line from the starting point to the hidden coin. How far and in what direction do you run?

A hammer with mass m is dropped from rest from a height h above the earth’s surface. This height is not necessarily small compared with the radiusof the earth. Ignoring air resistance, derive an expression for the speed v of the hammer when it reaches the earth’s surface. Your expression should involve h,, and(the earth’s mass).

A swimming pool is 5.0 m long, 4.0 m wide, and 3.0 m deep. Compute the force exerted by the water against (a) the bottom and (b) either end. (Hint: Calculate the force on a thin, horizontal strip at a depth h, and integrate this over the end of the pool.) Do not include the force due to air pressure.

You normally drive on the freeway between San Diego and Los Angeles at an average speed of 105 km/h (65 mi/h), and the trip takes 1 h and 50 min. On a Friday afternoon, however, heavy traffic slows you down and you drive the same distance at an average speed of only 70 km/h (43 mi/h). How much longer does the trip take?

Find the magnitude and direction of the net gravitational force on mass A due to masses B and C in Fig. E13.6. Each mass is.

Figure E13.6

See all solutions

Recommended explanations on Physics Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.