Golf Clubs Toddler
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August 06, 2011
Golf
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can you help me in physics?
An object has a kinetic energy of 297 J and a momentum of magnitude 22.8 kg·m/s. Find the speed and the mass of the object.
speed ____m/s
mass ____ kg
A man claims he can safely hold on to a 10.3-kg child in a head-on collision with a relative speed of 139-mi/h lasting for 0.10 s as long as he has his seat belt on.
(a) Find the magnitude of the average force needed to hold onto the child.
_____________ N
(b) Based on the result to part (a), is the … Continue Reading