A train is traveling down a straight track at 35 m/s when the engineer applies the brakes, resulting in an acceleration of −1.0 m/s2 as long as the train is in motion. How far does the train move during a 70-s time interval starting at the instant the brakes are applied? ? m

To take off from the ground, an airplane must reach a sufficiently high speed. The velocity required for the takeoff, the takeoff velocity, depends on several factors, including the weight of the aircraft and the wind velocity. A plane accelerates from rest at a constant rate of 5.00 m/s2m/s2 along a runway that is 1800 mm long. Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the time tTOtTO needed to take off? What is the distance d_last traveled by the plane in the last second before taking off?

A rocket-powered sled moves along a track, eventually reaching a top speed of 219 m/s to the east. It then begins to slow down, reaching a complete stop after slowing down for 4.98 s. What was the sled s average acceleration and velocity during the slowdown phase?     44.0 m/s^2 east, not enough information     109.5 m/s^2 west, 109.5 m/s west     44.0 m/s^2 west, not enough information     0 m/s^2 0, 109.5 m/s east

A snowboarder on a slope starts from rest and reaches a speed of 2.4 m/s after 7.1 s. (a) What is the magnitude (in m/s2) of the snowboarder's average acceleration? in m/s2 (b) How far (in m) does the snowboarder travel in this time? in m

A certain freely falling object, released from rest, requires 1.95 s to travel the last 32.0 m before it hits the ground. (a) Find the velocity of the object when it is 32.0 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward.) m/s (b) Find the total distance the object travels during the fall. m

An object moving with uniform acceleration has a velocity of 11.0 cm/s in the positive x-direction when its x-coordinate is 3.21 cm. If its x-coordinate 2.25 s later is −5.00 cm, what is its acceleration? cm/s2

A baseball is hit so that it travels straight upward after being struck by the bat. A fan observes that it takes 3.10 s for the ball to reach its maximum height. (a) Find the ball's initial velocity. m/s upward (b) Find the height it reaches. m

While driving at 45.0 mi/hr (20.1 m/s) on a straight portion of Route 9 West, Randi notices that the traffic light has turned red at the intersection directly ahead. Randi applies his brakes, slows his car down at a steady rate, and brings his car to rest, while traveling the 60.0 m distance to the stop line (at the red light). 21. While he is slowing down, the acceleration of Randi's car has a magnitude of A. 6.73 m, В. 16.9 m 2. 169 m/: А. С. 33,8 т D. 9.80 m E. 3.37 m / 22. How much time passes as Randi's car slows down from 45.0 mi/hr to 0 m/s? A. 20.68 s. B. 5.97 s. C. 2.66 s. D. 2.99 s. E. 0.596 s. 23. While Randi's car is slowing down, his car's acceleration is A. directed straight down towards the Earth's center. B. equal to zero. C. directed straight upwards. D. directed parallel to the car's velocity. E. directed antiparallel to the car's velocity.

A rocket-powered sled moves along a track, eventually reaching a top speed of 156 m/s to the west. It then begins to slow down, reaching a complete stop after slowing down for 3.41 s. What was the sled s average acceleration and velocity during the slowdown phase? 45.7 m/s^2 west, not enough information 78 m/s^2 east, 78 m/s éast 45.7 m/s^2 east, not enough information 0 m/s^2 0, 78 m/s west

An object moving with uniform acceleration has a velocity of 14.0 cm/s in the positive x-direction when its x-coordinate is 2.73 cm. If its x-coordinate 1.85 s later is −5.00 cm, what is its acceleration? cm/s2