Author Question: A 200-g hockey puck is launched at an initial speed of 16 m/s up a metal ramp that is inclined at a ... (Read 143 times)

clippers! · **on:** Jul 29, 2018

A 200-g hockey puck is launched at an initial speed of 16 m/s up a metal ramp that is inclined at a 30 angle.

The coefficients of static and kinetic friction between the hockey puck and the metal ramp are s = 0.40 and k = 0.30, respectively. What vertical height does the puck reach above its starting point?
A) 8.6 cm
B) 17 cm
C) 13 cm
D) 4.2 cm

Question 2

A 5.00-m-long uniform ladder, weighing 200 N, rests against a smooth vertical wall with its base on a horizontal rough floor, a distance of 1.20 m away from the wall. The coefficient of static friction between the ladder and the floor is 0.200.

How far up the ladder, measured along the ladder, can a 600-N person climb before the ladder begins to slip? A) 1.50 m
B) 1.26 m
C) 1.05 m
D) 3.95 m
E) 4.56 m

morganmarie791 · **Reply #1 on:** Jul 29, 2018

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