Bill the sledding stuntman misses his jump at while travelling at 15.0 m/s and p
ID: 2261054 • Letter: B
Question
Bill the sledding stuntman misses his jump at while travelling at 15.0 m/s and plows right into a stationary 55.0 kg snowman. The snowman flies off at an angle of 15.0
Bill the sledding stuntman misses his jump at while travelling at 15.0 m/s and plows right into a stationary 55.0 kg snowman. The snowman flies off at an angle of 15.0 degree from the positive x-axis at a speed of 5.0 m/s. Bill and the sled have a combined mass of 65.0 kg. What is the magnitude of the snowman's momentum after the collision? What is the final speed of Bill and the sled after the accident? With respect to the positive x-axis, what angle do Bill and the sled travel after the crash? (Use units of "deg" for degrees)Explanation / Answer
A) magnitude ofmomentum = 55*5 =175 kgm/s
B) Initial momentum = Final momentum
65*15 = 55*5(cos15) + 65v
v= (65*15-55*5(cos15))/65 =10.9 in horizantal
55 sin15 = 65v
v= 55/65 = 0.84 in vertical
Final speed = (10.9^2+0.84^2)^1/2 = 10.9
C)tanx = vertical velocity component/horizantal component of velocity = 0.84/10.9 =0.0769
x=4.4 degrees
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