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-10. A car traveling at 40.0 mi/h skids to rest in 5.00 s. (a) What is...
A car traveling at 33 mph (53 km/h) skids to a stop in 10 m. What...
A car traveling at 33 mph (53 km/h) skids to a stop in 10 m. What is the magnitude of the deceleration of the car during the skid? a.) 36000 km/h2 b.) 33 mph c.) 1.4 x 107 km/h2 d.) 3.6 x 106 km/h2
1) Review Interactive Solution 2.33 in preparation for this problem. Suppose a car is traveling at...
1) Review Interactive Solution 2.33 in preparation for this problem. Suppose a car is traveling at +20.6 m/s, and the driver sees a traffic light turn red. After 0.421 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 5.00 m/s2. What is the stopping distance of the car, as measured from the point where the driver first notices the red light? 2) A VW Beetle goes from 0 to 41.0 mi/h with an...
A car of mass 772 kg is traveling 24.4 m/s when the driver applies the brakes,...
A car of mass 772 kg is traveling 24.4 m/s when the driver applies the brakes, which lock the wheels. The car skids for 5.27 s in the positive x-direction before coming to rest. a). What is the car's acceleration (in m/s2)? (Indicate the direction with the sign of your answer.) b). What magnitude force (in N) acted on the car during this time? c). How far (in m) did the car travel?
A car traveling at 35 mi/h crashes into a tree. The front end of the car...
A car traveling at 35 mi/h crashes into a tree. The front end of the car compresses and the driver comes to rest after traveling 0.75 m. What was the magnitude of the average acceleration of the driver during the collision? Express your answer in terms of "gs", where 1g 9.80 m/s. Determine the time interval of the collision, in milliseconds. 6. The tower of Pisa is 54.5 m tall. Assuming that Galileo dropped his object from rest from the...
An automobile traveling at 70.0 km/h has tires of 50.0 cm diameter. (a) What is the...
An automobile traveling at 70.0 km/h has tires of 50.0 cm diameter. (a) What is the angular speed of the tires about their axles? rad/s (b) If the car is brought to a stop uniformly in 40.0 complete turns of the tires (without skidding), what is the magnitude of the angular acceleration of the wheels? rad/s2 (c) How far does the car move during the braking? m
1. A car accelerates from zero to 105 km/h in 5.21 s. What is its average...
1. A car accelerates from zero to 105 km/h in 5.21 s. What is its average acceleration in km/h/s and m/s? 2. An object moving in the x-direction has a position described by the function x(t) - 6.30t + 8.70t2, where t is in seconds and x is in meters. What is the acceleration as a function of time? The figure shows the graph of v vs t for the motion of a motorcyle that starts from rest and moves...
Please show all work! 1. A train is traveling down a straight track at 20 m/s...
Please show all work!
1. A train is traveling down a straight track at 20 m/s when the engineer applies the brakes, resulting in an acceleration of 21.0 m/s2 as long as the train is in motion. How far does the train move during a 40-s time interval starting at the instant the brakes are applied? 2.A balli thrown vertically upward with a speed of 25.0 m/s.(o) How high does it rise? (b) How long does it take to reach...
1. Cheetahs can accelerate to a speed of 20.0 m/s in 2.50 s and can continue...
1. Cheetahs can accelerate to a speed of 20.0 m/s in 2.50 s and can continue to accelerate to reach a top speed of 27.6 m/s. Assume the acceleration is constant until the top speed is reached and is zero thereafter. Let the +?+x direction point in the direction the cheetah runs. Express the cheetah's top speed ?top in miles per hour (mi/h)(mi/h) . vtop = Starting from a crouched position, how much time ?accel does it take a cheetah...
What are the Solutions to Part B of Chapter 2 of Tillery Physics 9th edition.......kinda pointless...
What are the Solutions to Part B of Chapter 2 of Tillery Physics 9th edition.......kinda pointless for you guys to only have the solutions that the book has already. 1. What was the average speed in km/h of a car that travels 400.0 km in 4.5 h? 2. What was the average speed in km/h of a boat that moves 15.0 km across a lake in 45 min? 3. How much would a 80.0 kg person weigh (a) on Mars,...
Randall is driving down a long steep hill (18°) at a steady 12.4 m/s? A. What...
Randall is driving down a long steep hill (18°) at a steady
12.4 m/s?
A. What is his velocity after 5.7 second of driving?
B. What is his velocity in the x and y directions?
C. How far up the hill does he drive in 5.7 seconds?
D. What is his vertical displacement in those 5.7
seconds?
For each question be sure to do the Prepare step: visual representation with variables and axes, collect known values, identify unknown quantities. 1....
A car traveling at 35 mi/h crashes into a tree. The front end of the car compresses and the driver comes to rest after traveling 0.75 m. What was the magnitude of the average acceleration of the driver during the collision? Express your answer in terms of "gs", where 1g 9.80 m/s. Determine the time interval of the collision, in milliseconds. 6. The tower of Pisa is 54.5 m tall. Assuming that Galileo dropped his object from rest from the...
An automobile traveling at 70.0 km/h has tires of 50.0 cm diameter. (a) What is the angular speed of the tires about their axles? rad/s (b) If the car is brought to a stop uniformly in 40.0 complete turns of the tires (without skidding), what is the magnitude of the angular acceleration of the wheels? rad/s2 (c) How far does the car move during the braking? m
1. A car accelerates from zero to 105 km/h in 5.21 s. What is its average acceleration in km/h/s and m/s? 2. An object moving in the x-direction has a position described by the function x(t) - 6.30t + 8.70t2, where t is in seconds and x is in meters. What is the acceleration as a function of time? The figure shows the graph of v vs t for the motion of a motorcyle that starts from rest and moves...
Please show all work!
1. A train is traveling down a straight track at 20 m/s when the engineer applies the brakes, resulting in an acceleration of 21.0 m/s2 as long as the train is in motion. How far does the train move during a 40-s time interval starting at the instant the brakes are applied? 2.A balli thrown vertically upward with a speed of 25.0 m/s.(o) How high does it rise? (b) How long does it take to reach...
Randall is driving down a long steep hill (18°) at a steady
12.4 m/s?
A. What is his velocity after 5.7 second of driving?
B. What is his velocity in the x and y directions?
C. How far up the hill does he drive in 5.7 seconds?
D. What is his vertical displacement in those 5.7
seconds?
For each question be sure to do the Prepare step: visual representation with variables and axes, collect known values, identify unknown quantities. 1....
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