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3) Your car got stuck on a road and you now have to push it. Your...
You are driving your car along a flat, curved road; the curve in the road is...
You are driving your car along a flat, curved road; the curve in the road is a segment of a circle with radius 50 meters. (We call this a "radius of curvature"). How fast can the car drive around the curve if the coefficient of static friction between the tires and the road is 1.0 (tires on dry pavement)? What if the coefficient of friction is 0.2 (tires on ice)?
You are driving at 30m/s and hit your breaks, skidding to a stop. The static coefficient...
You are driving at 30m/s and hit your breaks, skidding to a stop. The static coefficient of friction between your tires and the road is μs = 0.7. The mass of your car is 1500 kg. a) What is your initial kinetic energy right before you hit the breaks? b) What is the magnitude of the static friction force acting on the car? c) Does the friction do positive or negative work on the car? Explain your reasoning. d) Use...
TR PROBLEMS: Show your 1. A 1800 Kg car moves around a flat circular road of...
TR PROBLEMS: Show your 1. A 1800 Kg car moves around a flat circular road of radius R- 100 m friction available between the tire and the road is 10368 N. Calculate (A) car can have so that it does not get out of the curve (B) the time alLoroblems radius R-100 m. The maximum amount ef (C) the new radius of the bigger circle the car moves on if it moves at a higher s the maxinmum speed the...
With your hand, you push back a toy car slowly and at constant speed against a...
With your hand, you push back a toy car slowly and at constant speed against a rubber band launcher, stretching the rubber band. You then hold the car still for a short period of time, and then let go. The rubber band un-stretches and launches the car forward. The car then moves along a flat, carpeted section of floor, then moves up a low-friction ramp. The motion detector was able to capture the entire sequence of events, beginning with when...
Name 37) You have been hired as an expert witness in a crash investigation. Car A of mass 1900 kg crashed into stationary car B of mass 1000 kg. You measure the coefficient of kinetic friction betwee...
Name 37) You have been hired as an expert witness in a crash investigation. Car A of mass 1900 kg crashed into stationary car B of mass 1000 kg. You measure the coefficient of kinetic friction between the locked tires a was in park so the tires did not turn). Car A hits car B, locking bumpers so that they s bef nd the road to be 0.6 (car B kid off together. They skid 20 m ore coming to...
Please show all steps. 3. You are an insurance investigator called to the scene of a...
Please show all steps.
3. You are an insurance investigator called to the scene of a car accident. According to witnesses, a blue car (mass ms) was traveling south through an intersection when it was hit by a red car (mass m.) traveling east that ran a stop sign. You observe that the red car came to rest in the intersection. The blue car ended up a distance from the intersection, in a direction measured south of east. Determine the...
5. (15 pts) You observe a 3 car accident in which everyone was safe. Car 1...
5. (15 pts) You observe a 3 car accident in which everyone was safe. Car 1 (1550 kg) sliding on ice at 15 m/s on runs into Car 2 (also 1550 kg) car at rest. After the first collision, the Car 1 does not move, but Car 2 moves away. The now moving Car 2 runs into the back of a stationary Car 3 (3250 kg) and they stick together. The Car 2 and Car 3 begin to slide towards...
Use the work-energy theorem to calculate the minimum speed v that you must give the box...
Use the work-energy theorem to calculate the minimum speed v
that you must give the box at the bottom
of the incline so that it will reach the skier.
Constants Part A You are a member of an alpine rescue team and must get a box of supplies, with mass 2.00 kg, up an incline of constant slope angle 30.0 ° so that it reaches a stranded skier who is a vertical distance 2.50 m above the bottom of the...
You are a member of an alpine rescue team and must get a box of supplies,...
You are a member of an alpine rescue team and must get a box of
supplies, with mass 2.10 kg , up an incline of constant slope angle
30.0 ∘ so that it reaches a stranded skier who is a vertical
distance 2.80 m above the bottom of the incline. There is some
friction present; the kinetic coefficient of friction is
6.00×10−2. Since you can't walk up the incline, you give
the box a push that gives it an initial...
Multiple Choice. Select the best option. You do not need to show your work. S Two...
Multiple Choice. Select the best option. You do not need to show your work. S Two men, Joel and Jerry, push against a wall. Jerry stops after 10 min, while Joel can push for 5.0 min onger. Compare the work they do. A) Both men do positive work, but Joel does 75% more work than Jerry. B) Both men do positive work, but Joel does 50% more work than Jerry C) Both men do positive work, but Jerry does 50%...
TR PROBLEMS: Show your 1. A 1800 Kg car moves around a flat circular road of radius R- 100 m friction available between the tire and the road is 10368 N. Calculate (A) car can have so that it does not get out of the curve (B) the time alLoroblems radius R-100 m. The maximum amount ef (C) the new radius of the bigger circle the car moves on if it moves at a higher s the maxinmum speed the...
With your hand, you push back a toy car slowly and at constant speed against a rubber band launcher, stretching the rubber band. You then hold the car still for a short period of time, and then let go. The rubber band un-stretches and launches the car forward. The car then moves along a flat, carpeted section of floor, then moves up a low-friction ramp. The motion detector was able to capture the entire sequence of events, beginning with when...
Name 37) You have been hired as an expert witness in a crash investigation. Car A of mass 1900 kg crashed into stationary car B of mass 1000 kg. You measure the coefficient of kinetic friction between the locked tires a was in park so the tires did not turn). Car A hits car B, locking bumpers so that they s bef nd the road to be 0.6 (car B kid off together. They skid 20 m ore coming to...
Please show all steps.
3. You are an insurance investigator called to the scene of a car accident. According to witnesses, a blue car (mass ms) was traveling south through an intersection when it was hit by a red car (mass m.) traveling east that ran a stop sign. You observe that the red car came to rest in the intersection. The blue car ended up a distance from the intersection, in a direction measured south of east. Determine the...
5. (15 pts) You observe a 3 car accident in which everyone was safe. Car 1 (1550 kg) sliding on ice at 15 m/s on runs into Car 2 (also 1550 kg) car at rest. After the first collision, the Car 1 does not move, but Car 2 moves away. The now moving Car 2 runs into the back of a stationary Car 3 (3250 kg) and they stick together. The Car 2 and Car 3 begin to slide towards...
Use the work-energy theorem to calculate the minimum speed v
that you must give the box at the bottom
of the incline so that it will reach the skier.
Constants Part A You are a member of an alpine rescue team and must get a box of supplies, with mass 2.00 kg, up an incline of constant slope angle 30.0 ° so that it reaches a stranded skier who is a vertical distance 2.50 m above the bottom of the...
You are a member of an alpine rescue team and must get a box of
supplies, with mass 2.10 kg , up an incline of constant slope angle
30.0 ∘ so that it reaches a stranded skier who is a vertical
distance 2.80 m above the bottom of the incline. There is some
friction present; the kinetic coefficient of friction is
6.00×10−2. Since you can't walk up the incline, you give
the box a push that gives it an initial...
Multiple Choice. Select the best option. You do not need to show your work. S Two men, Joel and Jerry, push against a wall. Jerry stops after 10 min, while Joel can push for 5.0 min onger. Compare the work they do. A) Both men do positive work, but Joel does 75% more work than Jerry. B) Both men do positive work, but Joel does 50% more work than Jerry C) Both men do positive work, but Jerry does 50%...
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