A car is making a trip of 40 miles. It travels half the distanceatan average speed of 20 mph. In order for it to have anaveragespeed of 40 mph for the whole trip, the car would need to:

a. Travel at an average speed of 40 mph for the remainderofthe trip.

b. Travel at an average speed of 60 mph for the remainderofthe trip.

c. Cover the remainder of the distance in 15 minutes

answer

watching

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Jean KeelingLv2

21 Jul 2019

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Related questions

1. a bullet shot straight up returns to its strarting point in10second. it inital speed was?

2. a car starting from rest moves with constant acceleration of2m/s2 for 10s, then travels with constant speed for another 10s,and then finally slows to a stop with constant accleration of-2m/s2. how far does it travel?

3.A motorist travels 160km @ 80km/h and 160km @ 100km/h. what isthe average speed of the motorist for this trip?

4.johnny throws a shotput at an angle of 45degrees, and it travelsa horizontal distance of 30. meters. If he releases the shotput atthe same speed but changes the angle to 55degrees, waht will be thenew range (distance)?

I have been working on this problem for awhile and am just notgetting it.

A race car starts from rest at point A on a flat, circular track.The driver presses on the gas pedal such that the speed of the carincreases at a constant rate of 12 MPH per second. The coefficientof static friction is 0.70 . radius = 800 ft.

A. What is the speed at which the car begins to slide? (mph)

B. What is the distance along the track that the car has traveledwhen it begins to slide? (ft)

C. What is the time it takes the car to go from rest at point A tothe point where the car begins to slide? (s)

An automobile travels on a straight road for 21 km at 23 km/h. Itthen continues in the same direction for another 21 km at 46 km/h.(a) What is the average velocity (in km/h) of the car during this42 km trip? (Assume that it moves in the positive x direction.) (b)What is the average speed (in km/h)?

Weekly leaderboard

Home

Homework Help 3,900,000

Physics 110,000

Unlock all answers

Related textbook solutions

Physics: Principles with Applications

Related questions

Weekly leaderboard