You are speeding your 2000 kg truck down Ferguson on a Friday night at 28 m/s. You see a squirrel in the road and slam on the brakes to avoid hitting it. The brakes plus the road friction generate 5000 N of force on the car. How far will your car skid before it stops?
Do you hit the squirrel if it was 100m away from your original position? (yes or no)
If you were driving slower like a responsible teen,18 m/s, what is your new stopping distance?
How would a slower speed have changed the outcome?
Use your answers to 1, 2 and 3 to answer: Why is it a good idea to drive the speed limit according to Physics?
A bullet with a mass of 0.020 kg is fired from rest in a rifle with a barrel that is 0.65 m long. The force exerted by the expanding gas in the barrel is a constant 5500 N. Determine the speed that the bullet would have at the end of the barrel.
A 60 kg diver falls from the 4 meter platform at UT's swimming complex into the pool below. Calculate
the diver’s velocity at impact. (number only rounded to nearest tenth ex: 7.2)
Someone wearing skates on a horizontal surface is pushed by a friend with a constant force of 65 N. How far must the student be pushed, starting from rest, so that her final kinetic energy is 352 J?