# physics

a hockey puck is given the initial speed of 10 m/s. If the coefficient of kinetic friction between the ice and puck is 0.10, how far will the puck slide before stopping?

1. 👍 0
2. 👎 0
3. 👁 345
1. KE= energy in friction
1/2 m v^2=mu*mg*distance
solve for distance.

1. 👍 0
2. 👎 0
2. Ffg

1. 👍 0
2. 👎 0
posted by David
3. What you wanna do is snort a line, smoke a J and look beyond what you see

1. 👍 0
2. 👎 0
posted by Jamar
4. HAHA!

1. 👍 0
2. 👎 0
posted by Brock
5. f = ma
u(k) * f(normal) = m*a
u(k) *m*g=m*a
u(k) *g =a
a = 0.10 * 9.81m/s^2 = 0.981 m/s^2
this is defined to be a negative acceleration

v = u + a*t
so t = (v-u)/a
and x = t * (v+u)/2
so together x = (v+u)(v-u)/2a
where x = distance, v = final speed, u = initial speed, t = time, a = acceleration

substitute in our known values:
x = (0+10)(0-10)/(2*-0.981)
x = 50/0.981 = 50.97m

1. 👍 0
2. 👎 0
posted by Dan

## Similar Questions

1. ### Physics

A hockey player hits a puck with his stick, giving the puck an initial speed of 5.0 m/s. If the puck slows uniformly and comes to rest in a distance of 20 m, what is the coefficient of kinetic friction between the ice and the

asked by anonymous on January 21, 2009
2. ### physics

A hockey puck struck by a hockey stick is given an initial speed v0 in the positive x-direction. The coefficient of kinetic friction between the ice and the puck is μk. (a) Obtain an expression for the acceleration of the puck.

asked by Anonymous on September 29, 2010
3. ### physics

A hockey puck struck by a hockey stick is given an initial speed v0 in the positive x-direction. The coefficient of kinetic friction between the ice and the puck is μk. (a) Obtain an expression for the acceleration of the puck.

asked by Anonymous on September 29, 2010
4. ### Physics

A hockey player hits a puck with his stick, giving the puck an initial speed of 5.8m/s . Part A If the puck slows uniformly and comes to rest in a distance of 20m , what is the coefficient of kinetic friction between the ice and

asked by Joe on October 3, 2013
5. ### Physics

A hockey puck is given an initial speed of 6.7 m/s. If the coefficient of kinetic friction between the puck and the ice is 0.08, how far (in m) does the puck slide before coming to rest?

asked by Amir on May 1, 2017
6. ### physics

A hockey puck slides with an initial speed of 52.3 m/s on a large frozen lake. If the coefficient of kinetic friction between the puck and the ice is 0.02, what is the speed of the puck after 11.8 s?

asked by Confused on September 26, 2014
7. ### College Physics

A hockey puck slides with an initial speed of 43.2 m/s on a large frozen lake. If the coefficient of kinetic friction between the puck and the ice is 0.036, what is the speed of the puck after 10.4 s?

asked by Anon on September 11, 2011
8. ### Physics

A hockey puck slides with an initial speed of 43.2 m/s on a large frozen lake. If the coefficient of kinetic friction between the puck and the ice is 0.036, what is the speed of the puck after 10.4 s?

asked by Anon on September 11, 2011
9. ### Physics

A hockey puck slides with an initial speed of 48 m/s on a large frozen lake. If the coefficient of kinetic friction between the puck and the ice is 0.030, what is the speed of the puck after 11 s?

asked by Chrissy on September 23, 2014
10. ### physics

A hockey puck slides with an initial speed of 40.7 m/s on a large frozen lake. If the coefficient of kinetic friction between the puck and the ice is 0.038, what is the speed of the puck after 11.9 s?

asked by confused on January 23, 2015

More Similar Questions