A man sitting on a sled resting on a frozen lake has 2 large snowballs in his arms. The empty sled has mass Ms = 25 kg, the man's mass is MM = 50 kg, and each snowball has mass MB = 5 kg. There is no friction between the sled and the ice. a) The man throws one of the snowballs to the right as seen in the diagram so that it is traveling at 4 m/s with respect to the frozen lake. How fast is the sled moving after the throw? The other snowball and the man are still riding on the sled after the throw. b) How much work did the man do on the snowball during the throw? As always, take care with signs. c) If the man exerted a constant force on the snowball for the duration of the 2 s throw, then what was the magnitude of the force? d) Now the man throws the second snowball in the opposite direction so that the snowball is travelling at 4 m/s to the left with respect to the lake. After this throw, what is the direction and magnitude of the sled's velocity? suow ball OMB Mm e) How much work did the man do on the second snowball during the throw? Again, take care with signs, and if you round your answer, clearly indicate whether the exact magnitude is larger or smaller than your answer to part b). cire Ms sled

A man sitting on a sled resting on a frozen lake has 2 large snowballs in his arms. The empty sled has mass Ms = 25 kg, the man's mass is MM = 50 kg, and each snowball has mass MB = 5 kg. There is no friction between the sled and the ice. a) The man throws one of the snowballs to the right as seen in the diagram so that it is traveling at 4 m/s with respect to the frozen lake. How fast is the sled moving after the throw? The other snowball and the man are still riding on the sled after the throw. b) How much work did the man do on the snowball during the throw? As always, take care with signs. c) If the man exerted a constant force on the snowball for the duration of the 2 s throw, then what was the magnitude of the force? d) Now the man throws the second snowball in the opposite direction so that the snowball is travelling at 4 m/s to the left with respect to the lake. After this throw, what is the direction and magnitude of the sled's velocity? suow ball OMB Mm e) How much work did the man do on the second snowball during the throw? Again, take care with signs, and if you round your answer, clearly indicate whether the exact magnitude is larger or smaller than your answer to part b). cire Ms sled

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter10: Systems Of Particles And Conservation Of Momentum

Section: Chapter Questions

Problem 75PQ

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