Q. 52

Expert-verifiedFound in: Page 156

Book edition
4th

Author(s)
Randall D. Knight

Pages
1240 pages

ISBN
9780133942651

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 m/s, and the rope pulls up on the sled at a angle. You estimate that the mass of the sled, with your friend on it, is kg and that you’re pulling with a force of N. What answer will you give?

The co-efficient of friction is

We have,

walking at a steady m/s

the rope pulls up on the sled at a angle

and with your friend on it, is kg and that you're pulling a force of N

the free body diagram, as shown above, with the pulling tension force of the rope acting at a angle with the horizontal on the sled, the friction , weigh and normal reaction

we can express the coefficient of friction as

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