Motion Test - 5...

The graphs below show the position versus time for three different cars: $$1, 2,$$ and $$3$$.
Rank these cars according to the magnitudes of their velocities at the time "t" indicated on the graph, greatest first.

The graph above shows position versus time for an object moving along a straight line. During which time interval(s) is the object's speed increasing?
I. $$0$$ to $$1$$ seconds
II. $$1$$ to $$2$$ seconds
III. $$2$$ to $$3$$ seconds

The two position-time graphs time in seconds pictured below on the same grid represents the position of a motorized car (red) and a cart coming down a ramp (blue). At what time are their velocity close to being the same?

Which of the following vehicles is undergoing a deacceleration?

A purple car is moving three times as fast as a yellow car. Each car slows down to a stop with the same constant acceleration. How much more distance is required for the purple car to stop ?

Each of the following graphs represents the position of a car as it moves or stays along a straight line. The scales on all the graphs are the same.
Which graph represents the fastest speed of the car at time T?

The velocity graphs below represent the motion of $$5$$ different object moving along a north-south line.
Which object changed directions during the represented movement?

The two ends of a train moving with uniform acceleration pass a certain point with velocities $$6\ kmph$$ and $$8\ kmph$$ respectively. What is the velocity with which the middle point of the train passes the same point?

An airplane accelerates down a runway at $$3.2 m s^{-2}$$ for 32.8 s until it finally lifts off the ground. Determine the distance travelled before takeoff.

When will a body have zero speed?