Question

An ice skater moving at 10.0 m/s coasts to a halt in 100 m on a smooth ice surface. What is the coefficient of friction between the ice and the skates?

Answer 1

Friction between ice and skates?

Answer 2

Answer:

0.051

Explanation:

let,the combined mass of the ice skater and the skate is

M

So,if the coefficient of frictional force is

μ

,then frictional force acting is

μ

N

=

μ

M

g

so,deceleration due to friction is

μ

M

g

M

=

μ

g

So,we can apply

v

2

=

u

2

−

2

a

s

here for constant deceleration,

Here,

v

=

0

,

u

=

10

,

s

=

100

and

a

=

μ

g

So, we get,

0

2

=

10

2

−

2

μ

g

⋅

100

so,

μ

=

100

200

⋅

9.8

=

0.051