a motorist suddenly notices a stalled car and slams on the brakes, decelerating at the rate of 6.3 meter per second square. unfortunately, this isn't good enough, and a collision ensues. from the damage sustained, police estimate that the car was moving at 18km/h at the time of collision. they also measures skid marks 34m long. (a) how fast was the motorist going when brakes were first applied? (b) how much time was elapsed from the initial braking to the collision?
a motorist suddenly notices a stalled car and slams on the brakes, decelerating at the rate of 6.3 meter per second square. unfortunately, this isn't good enough, and a collision ensues. from the damage sustained, police estimate that the car was moving at 18km/h at the time of collision. they also measures skid marks 34m long. (a) how fast was the motorist going when brakes were first applied? (b) how much time was elapsed from the initial braking to the collision?
An Introduction to Physical Science
14th Edition
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Chapter1: Measurement
Section: Chapter Questions
Problem 26SA
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a motorist suddenly notices a stalled car and slams on the brakes, decelerating at the rate of 6.3 meter per second square. unfortunately, this isn't good enough, and a collision ensues. from the damage sustained, police estimate that the car was moving at 18km/h at the time of collision. they also measures skid marks 34m long. (a) how fast was the motorist going when brakes were first applied? (b) how much time was elapsed from the initial braking to the collision?
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