Physics rollerblading question

1) Suzie (of mass 38 kg) is roller-blading down the sidewalk going 20 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2 seconds. What is Suzie’s average acceleration? Answer in units of m/s^2.

2) What force was exerted to stop Susie? Answer in units of N.

Where did this force come from?
1. the gravity
2. the friction between the ground and the skates
3. the upward force exerted by the ground
4. the friction between the air and Suzie
5. All of these

Any help with getting this question started would be great!

  1. 👍 0
  2. 👎 0
  3. 👁 238
asked by Becca
  1. See a tutor in CASA

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    Suzie (of mass 76 kg) is roller-blading down the sidewalk going 12 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 1.9 seconds. What is

    asked by Luke on October 10, 2013
  2. physics

    Suzie (of mass 58 kg) is roller-blading down the sidewalk going 36 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2 . 4 seconds. What is

    asked by jay on November 17, 2013
  3. Physics

    Suzie (of mass 84 kg) is roller-blading down the sidewalk going 34 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 1.1 seconds. What is

    asked by Lily on December 10, 2015
  4. physic

    Suzie (of mass 58 kg) is roller-blading down the sidewalk going 36 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2 . 4 seconds. What is

    asked by jay on November 17, 2013
  5. physics

    Suzie (of mass 70 kg) is roller-blading down the sidewalk going 20 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2.2 seconds. What is

    asked by joshua on February 9, 2020
  1. Math

    Janice and Thomas are roller blading around Sampson Pond. It takes them 4 minutes to complete a lap. Write and solve an equation to find how many laps they can complete in one hour if they continue roller blading at this pace.

    asked by Anonymous on September 6, 2018
  2. Math

    One of the world's fastest roller coasters is located in a theme park in Valencia, California. Riders go from 0 to 100 miles per hour in 7 seconds. Find the acceleration of the roller coaster during this time interval in miles per

    asked by Monica on March 8, 2010
  3. math

    One of the world's fastest roller coasters is located in a theme park in Valencia, California. Riders go from 0 to 100 miles per hour in 7 seconds. Find the acceleration of the roller coaster during this time interval in miles per

    asked by erin on September 27, 2010
  4. Trigonometry- Help!

    After one hour in flight, an airplane is located 200 miles north and 300 miles west of the airport. What is the magnitude of the plane's velocity? Round your answer to the nearest mile per hour. a) 22 miles per hour b) 128 miles

    asked by Ellie on December 17, 2015
  5. physics

    . Compared a car (mass of 2000 kg) moving at 10 miles per hour, how much kinetic energy (in Joules) does that same car have when it moves at 20 miles per hour? At 50 miles per hour? 75 miles per hour?

    asked by Hector on March 12, 2012

More Similar Questions