Phys 2.1 Formative

What is the distance of a trip from your house to the grocery store, then to your friend's house, and finally back to your house?

(a)  

What is the displacement for a trip from the math classroom to the music classroom and then to the library?

(a)  

A golfer putts on the 18th green at a distance of 5.0m from the hole. The ball roll straight, in the positive direction, but overshoots the hole by 1.2m. The golfer then putts back to the hole and sinks the putt for par. What is the displacement of the ball?

(a)  

A billiard ball travels 22cm in the positive direction, hits the cushion and rebounds in the negative direction, and finally comes to rest 7.5cm behind its original position. What is the distance covered by the ball?

(a)  

Suppose a kingfisher bird dives with an average speed of 4.6 m/s for 1.4 s before hitting the water. What was the height from which the bird dove?

(a)  

It was a dark and stormy night, when suddenly you saw a flash of lightning, then 3.5 seconds later you heard the thunder. Given that the speed of sound in air is 340 m/s, how far away did the lightning bolt strike? (give your answer in kilometers)

(a)  

After a tennis match, the two players run to the net to shake hands. If they both run with a speed of 3 m/s, are their velocities equal?

In 2009, Usain Bolt of Jamaica set a world record of 9.58 s in the 100-m dash. What was his average speed? (give your answer in m/s)

(a)  

A train travels in a straight line at 20.0 m/s for 2 km, then at 30.3 m/s for another 2 km. What is the average speed of the train in m/s?

(a)  

The red kangaroo is the largest marsupial in the world. It has been clocked hopping at a speed of 65 km/h. How far in km can a red kangaroo hop in 3.2 minutes at this speed?

(a)