Sodium
Sep 18, 2009, 05:49 PM
Hello everyone!
Just going over my physics review, and realized I have no idea about one of these questions, please help and explain what you are doing, THANKS:)
A crazy transport truck who was driving 130km/h behind mr. Berk spots mr berks VW jetta at a distance of 75 m from his bumper. He hits the brakes.
a) if his reaction time is .8s how far does he travel before the brakes are engaged
b) the truck begins decellerating at 15m/s squared fish tailing widly. Does he hit mr berks car?
Please explain!
And another one...
A ball is launched vertically in the air with a initial velocity or 23m/s [up]. How high with the ball travel up from the point where it was launched (hint the ball will decelerate at the same rate it would accelerate had it been dropped)
Ugh!
Just going over my physics review, and realized I have no idea about one of these questions, please help and explain what you are doing, THANKS:)
A crazy transport truck who was driving 130km/h behind mr. Berk spots mr berks VW jetta at a distance of 75 m from his bumper. He hits the brakes.
a) if his reaction time is .8s how far does he travel before the brakes are engaged
b) the truck begins decellerating at 15m/s squared fish tailing widly. Does he hit mr berks car?
Please explain!
And another one...
A ball is launched vertically in the air with a initial velocity or 23m/s [up]. How high with the ball travel up from the point where it was launched (hint the ball will decelerate at the same rate it would accelerate had it been dropped)
Ugh!