physics 2

Question 1:
Suppose a child of weight w climbs onto the sled. If the tension force is measured to be 58.5 N, find the weight of the child and the magnitude of the normal force acting on the sled.

Question 2 :
(a) Suppose a hockey puck slides down a frictionless ramp with an acceleration of 4.50 m/s2. What angle does the ramp make with respect to the horizontal?

(b) If the ramp has a length of 5.80 m, how long does it take the puck to reach the bottom?

(c) Now suppose the mass of the puck is doubled. What's the puck's new acceleration down the ramp?

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