Assume that the brakes in your car result in a constant deceleration of magnitude a, which is independent of how fast you are driving. The stopping distance is the distance that your car continues to move forward after you have pressed the brakes. Suppose that when driving 30 mph, your car's stopping distance is d. What is your car's stopping distance when driving 60 mph?

A ball is dropped from a height of 3 m and rebounds from the floor to a height of 2 m.a) What is the velocity of the ball just as it reaches the floor?b) What is the velocity just as it leaves the floor?c) If it is in contact with the floor for 0.02 s, what are the magnitude and direction of its average acceleration during the interval?

Which of the following statements are true regarding velocity-time graphs?I.     The slope of a velocity-time graph is acceleration.     II.    The graph has a slope of zero if the object is at rest.     III.  A line with negative slope indicates that the object is slowing down.

1.) Let sA = 15t^2 + 10t + 20 and sB= 5t^2 + 40t, where t ≥ 0, be the position functions of cars A and B, respectively, that are moving along parallel straight lanes of a highway (here, t is in minutes and s in feet). a.) At what instant of time do they have the same velocity? b.) Which car is ahead when the two cars have the same velocity? Please show your complete solution thanks.

Assume that an MX missile goes from rest to a suborbital velocity of 9.50 km/s in 50.0 s (the actual speed and time are classified). What is its average acceleration in m/s2?  What is its average acceleration in multiples of g?

A rock is falling from the top of a cliff. Which of the following statements is true? a. Speed of the rock decreases and its acceleration remains constant O b. Speed of the rock increases and its acceleration remains constant Oc. Speed of the rock remains constant and its acceleration increases O d. Speed and acceleration of the rock remains constant

You are driving at night on a straight path at 70MPH. Suddenly, a dog appears in your headlights 35 meters away. You immediatley apply the brakes which causes your car to slow down at a constant rate, coming to rest just before making contact with the dog.  1 mile = 1.61 km 1) How long did it take for your car to make a complete stop?  2) If you were initially driving in the 'positive x' direction, then what was your acceleration during the braking maneuver, in vector form and in m/s2?

Assume that an MX missile goes from rest to a suborbital velocity of 8.50 km/s in 70.0 s (the actual speed and time are classified). What is its average acceleration in m/s2?  m/s2 What is its average acceleration in multiples of g?  g

A car, initially traveling 24.0m/s speeds up at a rate of 5.00m/s? for 5.00s. Determine all unknowns and answer the following questions. What was the car's final speed? m/s How far did the car travel during this time? m

A.) is the car speeding up or slowing down? B.) find the distance the car will move as it comes to rest.