# • Calculate the momentum in (kilograms*meters/second) for the following: A 1500 kg parked car… 1 answer below »

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• Calculate the momentum in (kilograms*meters/second) for the following: • A 1500 kg parked car • A 20 kg toddler sliding on a slide 2 m/s to the SW • A 1500 kg car going 90 mi/hour on the freeway • If my momentum was 172 kg*m/s to the south and my mass is 86 kg, what is my velocity? • Calculate the force of impact, in Newtons, from the impulse equation F * t = m(vf-vi) where a 1100 kg car was driving 40.2 m/s to 0 m/s in 0.25 s. The road was icy so ignore friction. • Calculate the Impulse of a 50 N punch lasting 0.25 s • Try it again for the same punch that takes 0.5 s • Using W = F * d where F is the magnitude of the force and d is distance use F = ma and Work = F*d to calculate the acceleration of a 1.25 kg book that’s pushed across a table of 1 meter with the total work done of 3 N*m • Physics in fitness: Remember the arc length formula we used for a lever? d = pr * (?/180) where ? is the angle of the part of the circle it makes, and r is the radius of the circle formed. • If I am at the gym doing shoulder curls, I’m treating my arms like a 0.8 m lever. If I swing my arm 90°, what is the distance my arm swung? • If I was lifting a 22 lbf (98 N) weight, how much work would I have done in one rep? • If I have done a set of 15 reps, how much work have I done in total?

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