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A race driver traveling at a speed of 230 km hr on the straightaway applies his...
The speed limit in a school zone is 45 km/h. A driver traveling at this speed...
The speed limit in a school zone is 45 km/h. A driver traveling at this speed sees a child run onto the road 20 m ahead of his car. He applies the brakes, and the car decelerates at a uniform rate of 11.0 m/s2. If the driver's reaction time is 0.55 s, will the car stop before hitting the child?What is the stopping distance of the vehicle?
A truck is traveling at a constant speed of 56.6 km/h . Suddenly, the driver sees...
A truck is traveling at a constant speed of 56.6 km/h . Suddenly, the driver sees a deer 24.0 m away and slams on the brakes. If the truck hits the deer 2.40 s after the driver slams on the brakes, what was the speed of the truck, in km/h, when the deer was struck? Assume motion was at constant acceleration.
Texting while driving can distract you for several seconds. If you are traveling at 100 km/hr...
Texting while driving can distract you for several seconds. If you are traveling at 100 km/hr and are 90m behind someone (also traveling at 100 km/hr) who slams on his brakes at 3 m/s23 m/s2and it takes you 3 seconds to realize you now need to brake, how far apart will you be when you match his speed again if you brake at 12 m/s2?
A driver is traveling at a speed of 70 km/h in car A when he looks...
A driver is traveling at a speed of 70 km/h in car A when he looks down to text a friend that he is running late. Just before he looks down. he is 80 m from an intersection, and a bicydist B, traveling at a constant speed of 10m/s,s d= 40 m from that same intersection. The light turns red during the 3 s text, and when the driver looks up, he hits the brakes, causing a constant deceleration of...
A train which is traveling at 73 mi/hr applies its brakes as it reaches point A...
A train which is traveling at 73 mi/hr applies its brakes as it reaches point A and slows down with a constant deceleration. Its decreased velocity is observed to be 56 mi/hr as it passes a point 1/2 mi beyond A. A car moving at 36 mi/hr passes point B at the same instant that the train reaches point A. In an unwise effort to beat the train to the crossing, t the driver "steps on the gas." Calculate the...
A train which is traveling at 73 mi/hr applies its brakes as it reaches point A...
A train which is traveling at 73 mi/hr applies its brakes as it reaches point A and slows down with a constant deceleration. Its decreased velocity is observed to be 56 mi/hr as it passes a point 1/2 mi beyond A. A car moving at 36 mi/hr passes point B at the same instant that the train reaches point A. In an unwise effort to beat the train to the crossing, t the driver "steps on the gas." Calculate the...
A car is traveling with a constant speed when the driver suddenly applies the brakes, giving...
A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50m/s2. The car comes to a stop in a distance of 34.0 m. What was an initial speed of the car? How long (the time) did it take for this car to stop? What was the car's speed when it had traveled 17.0 m from the point where the brakes were applied? How long did it take for this...
11.78 A car is traveling at a constant speed of 54 km/h when its driver sees...
11.78 A car is traveling at a constant speed of 54 km/h when its driver sees a child run into the road. The driver applies her brakes until the child returns to the sidewalk and then accelerates to resume her original speed of 54 km/h; the acceleration record of the car is shown in the figure. Assuming x = 0) when t = 0, determine (a) the time t, at which the velocity is again 54 km/h, (b) the position...
16.67 m The motorcycle shown below is traveling at a constant speed of 60 km hr...
16.67 m The motorcycle shown below is traveling at a constant speed of 60 km hr = m Find the magnitude of the motorcycle's acceleration at point Ain у y2 = 2x A -X 25 m
Texting while driving can distract you for several seconds. If you are traveling at 100 km/hr and are 90m behind someone (also traveling at 100 km/hr) who slams on his brakes at 3 m/s23 m/s2and it takes you 3 seconds to realize you now need to brake, how far apart will you be when you match his speed again if you brake at 12 m/s2?
A driver is traveling at a speed of 70 km/h in car A when he looks down to text a friend that he is running late. Just before he looks down. he is 80 m from an intersection, and a bicydist B, traveling at a constant speed of 10m/s,s d= 40 m from that same intersection. The light turns red during the 3 s text, and when the driver looks up, he hits the brakes, causing a constant deceleration of...
A train which is traveling at 73 mi/hr applies its brakes as it reaches point A and slows down with a constant deceleration. Its decreased velocity is observed to be 56 mi/hr as it passes a point 1/2 mi beyond A. A car moving at 36 mi/hr passes point B at the same instant that the train reaches point A. In an unwise effort to beat the train to the crossing, t the driver "steps on the gas." Calculate the...
A train which is traveling at 73 mi/hr applies its brakes as it reaches point A and slows down with a constant deceleration. Its decreased velocity is observed to be 56 mi/hr as it passes a point 1/2 mi beyond A. A car moving at 36 mi/hr passes point B at the same instant that the train reaches point A. In an unwise effort to beat the train to the crossing, t the driver "steps on the gas." Calculate the...
11.78 A car is traveling at a constant speed of 54 km/h when its driver sees a child run into the road. The driver applies her brakes until the child returns to the sidewalk and then accelerates to resume her original speed of 54 km/h; the acceleration record of the car is shown in the figure. Assuming x = 0) when t = 0, determine (a) the time t, at which the velocity is again 54 km/h, (b) the position...
16.67 m The motorcycle shown below is traveling at a constant speed of 60 km hr = m Find the magnitude of the motorcycle's acceleration at point Ain у y2 = 2x A -X 25 m
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