# phy

A child goes down a playground slide with an acceleration of 1.36 m/s^2.
1-Find the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 28.0 deg below the horizontal.

1. 👍 0
2. 👎 0
3. 👁 802
1. force gravity down= mg sin28
friction down: mg*mu*cos28

netforce=mass*acceleration
mg(sin28-mu*cos28)=ma

solve for mu.

1. 👍 0
2. 👎 4

## Similar Questions

1. ### Physics

A child goes down a playground slide with an acceleration of 1.24 m/s^2. Find the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 32.0 degrees below the horizontal.

asked by Abby on February 23, 2010
2. ### Physics

A child goes down a playground slide that is inclined at an angle of 24.5° below the horizontal. Find the acceleration of the child given that the coefficient of kinetic friction between the child and the slide is 0.305.

asked by Manny on October 5, 2010
3. ### Physics

At a playground, a 22kg child plays on a slide that drops through a height of 2.1m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -371J on the child. What is the

asked by Amanda on November 11, 2015
4. ### physics

At a playground, a 19.8 kg child plays on a slide that drops through a height of 2.13 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -319 J on the child. What is the

asked by mike on March 8, 2012
5. ### physics

At a playground, a 19.7-kg child plays on a slide that drops through a height of 2.29 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -368 J on the child. What is the

asked by uknown person on December 4, 2017
6. ### physics

At a playground, a 19.8 kg child plays on a slide that drops through a height of 2.13 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -319 J on the child. What is the

asked by mike on March 8, 2012
7. ### Physics

At a playground, a 18.7 kg child plays on a slide that drops through a height of 2.07 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -318 J on the child. What is the

asked by Carden on March 29, 2010
8. ### Physics

At a playground, a 18.7 kg child plays on a slide that drops through a height of 2.07 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -318 J on the child. What is the

asked by Carden on March 29, 2010
9. ### Physics

A child slides down a 5.98 m playground slide that makes an angle of 38.0° with the horizontal. The coefficient of kinetic friction between the slide and the child is 0.162. If she starts at the top with a speed of 0.208 m/s,

asked by Han on March 19, 2018
10. ### Physics

I need help with this physics problem: A child slides down a playground slide; the coefficient of kinetic friction is uk=0.25, and angle that the slide makes with the horizontal is 28.0 degree. She begins from rest and slides

asked by Amy on February 25, 2009

More Similar Questions