Homework Answers
As car starts to slow down it shows that acceleration of car is negative so this acceleration will reduce the speed of car to zero and once car stops , if still car have the same acceleration then car will start to move in opposite direction that is in East direction. Its speed will starts to increase.
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7 of 17 A car traveling to the west (-x direction) begins to slow down, then...
4) (5 pts) Suppose that a car traveling to the west (or negative x-direction) begins to...
4) (5 pts) Suppose that a car traveling to the west (or negative x-direction) begins to slow down as it approaches a traffic light. Which of the following statements about its acceleration is correct? a. The acceleration is toward the east b. The acceleration is zero C. Since the car is slowing down, the acceleration is negative d. The acceleration is toward the west. 5) (10 pts) Sketch a graph of position, velocity, and acceleration vs. time for the car...
A car is traveling down a hill that makes an angle of 17° with the horizontal....
A car is traveling down a hill that makes an angle of 17° with the horizontal. The driver applies her brakes, and the wheels lock so that the car begins to skid. The coefficient of kinetic friction between the tires and the road is μK = 0.53. (a) Find the acceleration of the car. (Take down the ramp to be the positive direction) (b) How long does the car take to skid to a stop if its initial speed is...
A police car is traveling in a straight line with a constant speed "Vp". A truck...
A police car is traveling in a straight line with a constant speed "Vp". A truck traveling in the same direction with the speed "3*Vp/2" passes the police car. The truck begins to slow down (the moment it passes the police car) at a constant acceleration of "-a" until it comes to a stop. Then the police car passes the truck. What is the maximum velocity the truck can have, so that the police car will reach him before he...
A car is traveling west at 22.5 m/s when it turns due south and accelerates to...
A car is traveling west at 22.5 m/s when it turns due south and accelerates to 25.0 m/s, all during a time of 5.00 s. Calculate the magnitude of the car's average acceleration (in m/s2).
A car is traveling to the left, which is the negative direction. The direction of travel...
A car is traveling to the left, which is the negative direction. The direction of travel remains the same throughout this problem. The car's initial speed is 24.1 m/s, and during a 8.47 -second interval, it changes to a final speed of (a) 27.1 m/s and (b) 11.2 m/s. In each case, find the acceleration (magnitude and algebraic sign).
A car is traveling down a hill that makes an angle of 25° with the horizontal....
A car is traveling down a hill that makes an angle of 25° with the horizontal. The driver applies her brakes, and the wheels lock so that the car begins to skid. The coefficient of kinetic friction between the tires and the road is uk = 0.63. (a) Find the acceleration of the car. Take down the ramp to be the positive direction. Submit Answer Tries 0/5 (b) How long does the car take to skid to a stop if...
A car initially traveling eastward turns north by traveling in a circular path at uniform speed...
A car initially traveling eastward turns north by traveling in a circular path at uniform speed as shown in the figure below. The length of the arc ABC is 230 m, and the car completes the turn in 41.0 s. (a) Determine the car's speed. 5.609m/s (b) What is the magnitude and direction of the acceleration when the car is at point B? magnitude m/s2 direction counterclockwise from the +x-axis
Two cars are traveling along a straight line in the same direction, the lead car at...
Two cars are traveling along a straight line in the same direction, the lead car at 25.7m/s and the other car at 29.2m/s. At the moment the cars are 39.7m apart, the lead driver applies the brakes, causing her car to have an acceleration of -1.99m/s2. How long does it take for the lead car to stop? What is the distance it travels during this time? Assuming that the chasing car brakes at the same time as the lead car,...
6) Cathy is in a car and the direction of Cathy's velocity is west, there is...
6) Cathy is in a car and the direction of Cathy's velocity is west, there is a net force acting on the car, what is the car doing? (Be careful, Canvas will not have the same order for the answers below!) Must be Speeding up in the west direction Must be slowing down in the cast direction Must be Moving at a constant velocity It could be either speeding up or slowing down. It could be either accelerating or moving...
Two cars are traveling along a straight line in the same direction, the lead car at...
Two cars are traveling along a straight line in the same direction, the lead car at 25.7m/s and the other car at 29.2m/s. At the moment the cars are 39.7m apart, the lead driver applies the brakes, causing her car to have an acceleration of -1.99m/s2. How long does it take for the lead car to stop? 1.29×101 s What is the distance it travels during this time? 1.66×102 m Assuming that the chasing car brakes at the same time...
4) (5 pts) Suppose that a car traveling to the west (or negative x-direction) begins to slow down as it approaches a traffic light. Which of the following statements about its acceleration is correct? a. The acceleration is toward the east b. The acceleration is zero C. Since the car is slowing down, the acceleration is negative d. The acceleration is toward the west. 5) (10 pts) Sketch a graph of position, velocity, and acceleration vs. time for the car...
A car is traveling down a hill that makes an angle of 25° with the horizontal. The driver applies her brakes, and the wheels lock so that the car begins to skid. The coefficient of kinetic friction between the tires and the road is uk = 0.63. (a) Find the acceleration of the car. Take down the ramp to be the positive direction. Submit Answer Tries 0/5 (b) How long does the car take to skid to a stop if...
A car initially traveling eastward turns north by traveling in a circular path at uniform speed as shown in the figure below. The length of the arc ABC is 230 m, and the car completes the turn in 41.0 s. (a) Determine the car's speed. 5.609m/s (b) What is the magnitude and direction of the acceleration when the car is at point B? magnitude m/s2 direction counterclockwise from the +x-axis
6) Cathy is in a car and the direction of Cathy's velocity is west, there is a net force acting on the car, what is the car doing? (Be careful, Canvas will not have the same order for the answers below!) Must be Speeding up in the west direction Must be slowing down in the cast direction Must be Moving at a constant velocity It could be either speeding up or slowing down. It could be either accelerating or moving...
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