Question

A car starts from rest and travels for 10.0 s with a uniform acceleration of +1.8 m/s2. The driver then applies the brakes, c
0 0
Add a comment Improve this question Transcribed image text
Answer #1

a - 1.8m/s?, -rosee, first phase before applying brake! - V= up at >V= 0+1.8x10 = 18m/s. After applying brake - a = -2.5m/s²

Add a comment
Know the answer?
Add Answer to:
A car starts from rest and travels for 10.0 s with a uniform acceleration of +1.8...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 1. A car starts from rest and travels for 8.0 s with a uniform acceleration of...

    1. A car starts from rest and travels for 8.0 s with a uniform acceleration of +1.8 m/s2. The driver then applies the brakes, causing a uniform acceleration of −1.5 m/s2. If the brakes are applied for 2.0 s, determine each of the following. (a) How fast is the car going at the end of the braking period? (m/s) (b) How far has the car gone? (m) 2. A ball is hit with a paddle, causing it to travel straight...

  • A car starts from rest and travels for 6.0 s with a uniform acceleration of +1.6 m/s2. The...

    A car starts from rest and travels for6.0 s with a uniform acceleration of+1.6m/s2. The driver then applies the brakes, causing auniform acceleration of-1.0 m/s2. If the brakes are applied for2.0 s, determine each of thefollowing.(a) How fast is the car going at the end of thebraking period?1 m/s(b) How far has it gone?2 m

  • A car starts from rest and travels for 5s with a uniform acceleration of 1.5m/s^2. The...

    A car starts from rest and travels for 5s with a uniform acceleration of 1.5m/s^2. The driver then applies the break, causing a uniform acceleration of -2m/s^2, If the breaks are applied for 3s a) how fast is the car going at the end of the breaking period and b) how far has the car gone?

  • A truck covers 40.0 m in 9.45 s while uniformly slowing down to a final velocity...

    A truck covers 40.0 m in 9.45 s while uniformly slowing down to a final velocity of 2.35 m/s. (a) Find the truck's original speed. ________m/s (b) Find its acceleration. _________ m/s2 A car starts from rest and travels for 7.5 s with a uniform acceleration of +3.0 m/s2. The driver then applies the brakes, causing a uniform acceleration of −1.5 m/s2. If the brakes are applied for 2.0 s, determine each of the following. (c) How fast is the...

  • Starting from rest, a truck travels in a straight line for 8.0 s with a uniform...

    Starting from rest, a truck travels in a straight line for 8.0 s with a uniform acceleration of +2.0 m/s2. The driver then applies the brakes for 2.0 s, causing a uniform acceleration of −3.0 m/s2 over that time. (a) What is the truck's speed at the end of the braking period? m/s (b) What is the total distance traveled by the truck (from the point where it started at rest to the end of the braking period)? m

  • (20 points) A car starting from rest travels 220 m in 9.4 seconds with a constant acceleration. It then travels at a con...

    (20 points) A car starting from rest travels 220 m in 9.4 seconds with a constant acceleration. It then travels at a constant speed for another 12 seconds. After that, the brakes are applied and the car comes to rest an acceleration of 6.5 m/s2. A) Draw the motion diagram for the entire trip. B) What direction is the acceleration when the car is coming to rest? C) List all known variables with their values. D) What is the acceleration...

  • 2.10 A car is going 35 m/s when the driver applies the brakes. a) If the...

    2.10 A car is going 35 m/s when the driver applies the brakes. a) If the braking acceleration is −5.7 m/s2 , how far will the car go as its velocity drops from 35 m/s to 22 m/s? b) How much time will the change from 35 m/s to 22 m/s take? 2.11 As hockey puck slides to a stop, it goes 40 m across the ice in 3.7 s. a) What was the initial velocity of the puck? b)...

  • 007 10.0 points A potter's wheel moves from rest to an angu- lar speed of 0.10...

    007 10.0 points A potter's wheel moves from rest to an angu- lar speed of 0.10 rev/s in 38.5 s. Assuming constant angular acceleration, what is its angular acceleration in rad/s2? Answer in units of rad/s. 008 10.0 points The tape in a videotape cassette has a total length 203 m and can play for 1.8 h. As the tape starts to play, the full reel has an outer radius of 47 mm and an inner radius of 14 mm....

  • A car travels 40 miles in 30 minutes. a. What is the average velocity in kilometers/hour?...

    A car travels 40 miles in 30 minutes. a. What is the average velocity in kilometers/hour? b. If the car weighs 1.5 tons, what is its kinetic energy in joules (Note: you will need to convert your velocity to m/s)? c. When the driver applies the brake, it takes 15 seconds to stop. How far does the car travel (in meters) while stopping? d. What is the average acceleration of the car (in m/s2) during braking?

  • Help 6. A 2370 kg airplane starts from rest and, with a constant acceleration of 5.0...

    Help 6. A 2370 kg airplane starts from rest and, with a constant acceleration of 5.0 m/s, reaches its takeoff speed in 9.00 s. a. What is the net force on the airplane during this time? b. What is the airplane's takeoff speed? c. How far down the runway does the airplane travel before taking off? 7. A train engine pulls a freight car that has a mass of 5.0 x 10 kg with a constant force. The freight car...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT