Physics

You are pulling your little sister on her sled across an icy (frictionless) surface. When you exert a constant horizontal force of 114 N, the sled has an acceleration of 2.3 m/s2 If the sled has a mass of 7.6 kg, what is the mass of your little sister?

I don't need the answer, just help on how to solve it. Thanks

  1. 👍 0
  2. 👎 0
  3. 👁 355
  1. (m1+m2)a=F
    m1+m2 =F/a
    m2=F/a – m1

    1. 👍 0
    2. 👎 0
  2. Thank you very much Elena for that and also for promptly answering my question on a timely manner!!!

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    a father pulls his young daughter on a sled with a constant velocity on a level surface through a distance of 10-m, if the total mass of the sled a the girl is 35-kg and the coefficent of kinetic friction between the sled runners

    asked by melissa on January 26, 2008
  2. Physics

    A 4-kg sled sliding freely on an icy surface experiences a 2 _ N frictional force exerted by the ice and an air-resistive force of 0.5 N. a. What is the net force acting on the sled? b. What is the acceleration of the sled?

    asked by Katherine on December 28, 2010
  3. Physics

    You are pulling your little sister on her sled across an icy (frictionless) surface. When you exert a constant horizontal force of 120 N, the sled has an acceleration of 1.7 m/s2 If the sled has a mass of 8.4 kg, what is the mass

    asked by Bobby on October 13, 2014
  4. physics

    Two people, one twice as massive as the other, try to play tug of war on a nearly frictionless, level, icy surface. When they begin to tug, they are 12 m apart. They tug by pulling the rope hand over hand, until their hands meet

    asked by jackie on December 8, 2014
  5. Calculus

    Chris pulled a sled 153 m by exerting a constant force of 225N at a constant angle of 65 degrees to the level ground. Find the work done in pulling the sled.

    asked by Anna on July 2, 2020
  1. science

    A sled is tied to a tree on a frictionless snow covered hill,as shown.If the sled weighs 77N ,1)Find the magnitude of the tension force T exerted by the rope on the sled .2)Find the magnitude of the normal force applied by the

    asked by ZENANDE on May 5, 2016
  2. physics

    It's a snowy day and you're pulling a friend along a level road on a sled. You've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. You've been walking at a steady

    asked by Jack on October 18, 2013
  3. physics

    A child and sled with a combined mass of 50.0 kg slide down a frictionless slope. If the sled starts from rest and has a speed of 3.40 m/s at the bottom, what is the height of the hill?

    asked by Allie on March 9, 2011
  4. Physics

    A block and a spool have the same mass, and are each pulled across a level, frictionless surface by a string, as shown to the right. The string pulling the spool is wrapped around it many times, and the other string is fastened to

    asked by Anonymous on March 15, 2017
  5. physics

    Two 21.0 kg ice sleds are placed a short distance apart, one directly behind the other, as shown in the figure. A 3.42 kg cat, initially standing on sled 1, jumps across to sled 2 and then jumps back to sled 1. Both jumps are made

    asked by anonymus on August 30, 2018
  6. science

    Three dogs—Ed, Max, and Marcie—are pulling a dogsled along a patch of ice. Ed pulls with a force of 115 N; Max pulls with a force of 62 N; and Marcie pulls with a force of 90 N. If there are no forces pulling the sled

    asked by breyana on January 19, 2017

You can view more similar questions or ask a new question.