Marcus is on a train that travels 30 ms and takes 10 seconds to slow to 20 ms. How would Marcus correctly calculate the acceleration?

A car is initially traveling at a rate of 65 feet per second. The acceleration of the car is 3 feet per second squared. Determine the displacement of the car at time t if the displacement at t=5 seconds is 29 feet. Do not include "s(t)=" in your answer.

A car travels a distance d = 29 m in the positive x-direction in a time of t1 = 21.5 s. The car immediately brakes and comes to rest in t2 = 7 s.Randomized Variablesd = 29 mt1 = 21.5 st2 = 7 s What was the car's average velocity in the horizontal direction, in meters per second, during t1?  What was the acceleration, in meters per second squared, during time interval t1, assuming the car started from rest and moved with a constant acceleration?  What was the car's instantaneous velocity in the horizontal direction, in meters per second, when it began braking?  Using the result from part (c), what was the car's horizontal component of acceleration, in meters per second squared, during the braking period?

You and Sally are walking to a local restaurant for dinner and disagree about which path would be faster. You each decide to travel on your chosen paths. On your path, the distance to the restaurant is 1.7 miles and you walk at a rate of 4.0 mph. Sally walks at a rate of 4.2 mph and her path is longer at 1.9 miles. Who gets to get the restaurant first? How much earlier does the winner get to the restaurant, in hours or minutes?

a truck at rest at a stoplight accelerates uniformly at 5.7 meters per second for 9 seconds after the light turns green. What is the speed of the truck in meters per second after that time interval?