A boy falls off his bike and hits his head (5 kg) on the pavement. The velocity of his fall at the time of impact is 5 m/s. (p = m v)
The helmet slowed the impact to 0.001 s. What is the force felt on the boy's brain due to his fall?
(F Δt = m Δv => F = (m Δv)/Δt )
Remember to report your units.
If the boy in problem 5 had not been wearing his helmet, how much force would have been applied to his brain during the collision? (Δt = 0.000001 s without a helmet. )
Answers: 2
Physics, 22.06.2019 20:30, justaguy15
Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?
Answers: 2
Physics, 22.06.2019 22:20, destiniout04231
A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.
Answers: 1
A boy falls off his bike and hits his head (5 kg) on the pavement. The velocity of his fall at the t...
Biology, 20.08.2019 23:30
Chemistry, 20.08.2019 23:30
Spanish, 20.08.2019 23:30
Mathematics, 20.08.2019 23:30