I'm driving down the highway in my car, at a speed of 25 m/s. Some jerk...
020 (part 1 of 3) 10.0 points You are driving at the speed of 34.8 m/s (77.862 mph) when suddenly the car in front of you (previously traveling at the same speed) brakes and begins to slow down with the largest deceleration possible without skid- ding. Considering an average human reaction, you press your brakes 0.576 s later. You also brake and decelerate as rapidly as possible without skidding. Assume that the coefficient of static friction is 0.722 between both...
You are driving at night on a highway at a speed of 18.2m/s. All of a sudden you see a deer in the road 38.3 m ahead. a. If you can slow down at a maximum rate of 4.50 m/s2, what reaction time is required to avoid hitting the deer? b. If your reaction time is actually 0.300s, how fast will you be traveling when you hit the deer?
A car driving with a speed of 16 m/s begins braking, coming to rest 45 m after the brakes are first applied. The car's tires have a radius of 38 cm. What is the magnitude of the angular acceleration of the car's tires as it stops?
Suppose a car is driving down the road at a speed of 15m/s . The car hits the brakes, inducing an acceleration of -2.5m/s. How long would it take in seconds for the car to fully stop?
A ball rolls onto the path of your car as you drive down a quiet neighborhood street. To avoid hitting the child that runs to retrieve the ball, you apply your brakes for 1.40 s. The car slows down from that 15.0 m/s to 9.00 m/s. The mass of the car is 1140 kg. During the time the brakes were applied, what was the average force exerted on your car? How far did the car move while braking? The weight...
The driver of a car traveling on the highway suddenly slams on the brakes because of a slowdown in traffic ahead. A) If the car’s speed decreases at a constant rate from 74 mi/h to 50 mi/h in 3.0 s, what is the magnitude of its acceleration, assuming that it continues to move in a straight line? Answer is in mi/h^2 B) What distance does the car travel during the braking period? Answer is in ft
Suppose a car is driving down the road at a speed of 15m/s^2. The car hits the brakes, inducing an acceleration of -2.5m/s^2. How long would it take, in seconds for the car go fully stop.
While driving down a flat highway at a speed of 29.0 m/s the wheel of a truck detaches from its axle and rolls towards a hill. The 45.0 kg wheel rolls without slipping up a hill where it stops at a location 80.0 m higher than the bottom of the hill. What is the wheel's moment of inertia in kgm I if its radius is 0.45 m? (Do not assume the wheel has a mass distribution that is on the...
While driving down a flat highway at a speed of 29.0 m/s the wheel of a truck detaches from its axle and rolls towards a hill. The 45.0 kg wheel rolls without slipping up a hill where it stops at a location 80.0 m higher than the bottom of the hill. What is the wheel's moment of inertia in kgm I if its radius is 0.45 m? (Do not assume the wheel has a mass distribution that is on the...
You're driving down the highway late one night at 20 m/s when a deer steps onto the road 45 m in front of you. Your reaction time before stepping on the brakes is 0.50 s , and the maximum deceleration of your car is 12 m/s2. What is the maximum speed you could have and still not hit the deer?