Question

A car engine accelerates from 1000 to 2000 rpm at a constant rate during 15 s....

A car engine accelerates from 1000 to 2000 rpm at a constant rate during 15 s.

a) Find the angular acceleration of the engine

b) Find the number of rotations the engine revolves from it starts at 1000 rpm until it has accelerated to 2000 rpm.

Homework Answers

Answer #1

(a)    Angular acceleration is given by

(b)     Using the equation :

Therefore

       = 2356.65 rad

       375.1 rotations

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
An automobile engine slows down from 3200 rpm to 1300 rpm in 2.1 s . a)...
An automobile engine slows down from 3200 rpm to 1300 rpm in 2.1 s . a) Calculate its angular acceleration, assumed constant. b) Calculate the total number of revolutions the engine makes in this time.
A car slows down from 4000 rpm to 2000 rpm in 2 s. Calculate the total...
A car slows down from 4000 rpm to 2000 rpm in 2 s. Calculate the total number of revolutions the engine makes in this time.
A 40%-efficient car engine accelerates the 2000 kg car from rest to 19 m/s . How...
A 40%-efficient car engine accelerates the 2000 kg car from rest to 19 m/s . How much energy is transferred to the engine by burning gasoline?
a car starts from rest and accelerates uniformly, until it has traveled 15km and acquired a...
a car starts from rest and accelerates uniformly, until it has traveled 15km and acquired a velocity of 30m/s. the car then moves at this constant velocity of 30 m/s for 15 minutes. the driver then applied the brakes and the car stopped after 5 minutes. find the acceleration during the last part of the trip: a1= The acceleration during the last part of the trip: a3= The total distance traveled during the whole trip: dtot=
The engine of a car is initially rotating at 5,600 rpm and after 4.0 seconds it...
The engine of a car is initially rotating at 5,600 rpm and after 4.0 seconds it has reduced its revs to 2,500 rpm. 1. the car reduces the engine revolutions, therefore its angular acceleration and can give us a value of __________. 2. the angular speed of 5600 rpm is equivalent to _________ rad / s 3. the angular speed of 2500 rpm is equivalent to _________ rad / s 4. the angular acceleration is _________ rad / s2^ 5....
A car starts from rest and accelerates at a constant rate travelling a distance of 160...
A car starts from rest and accelerates at a constant rate travelling a distance of 160 m in 6 s. The car continues to accelerate at the same rate for an additional x m. If the speed of the car after it has travelled the (160+ x) m is 92 m/s, how far x (in m) did the car continue at a constant acceleration?
A 1,500 kg car starts from rest and accelerates to 23 m/s in 11 s. Assume...
A 1,500 kg car starts from rest and accelerates to 23 m/s in 11 s. Assume that the air resistance remains constant at 162 N. Calculate the acceleration of the car. Calculate the average force exerted by engine during this time. Calculate the average velocity of the car. Calculate the average power output during this time.
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 16.0 m/s in 12.9...
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 16.0 m/s in 12.9 s. Assume that air resistance remains constant at 400 N during this time. (a) Find the average power developed by the engine. ____ hp (b) Find the instantaneous power output of the engine at t = 12.9 s, just before the car stops accelerating. ______ hp
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 15.1 m/s in 12.7...
A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 15.1 m/s in 12.7 s. Assume that air resistance remains constant at 400 N during this time. (a) Find the average power developed by the engine. (hp) (b) Find the instantaneous power output of the engine at t = 12.7 s, just before the car stops accelerating. (hp)
An automobile engine slows down from 3900 rpmto 1500 rpm in 2.00 s . Calculate its...
An automobile engine slows down from 3900 rpmto 1500 rpm in 2.00 s . Calculate its angular acceleration, assumed constant. Calculate the total number of revolutions the engine makes in this time.