During a race, a sprinter increased from 5.0 m/s to 7.5 m/s over a period of 1.25 seconds. what is the sprinters acerage acceleration during this period

A carte with a mass of 155 kg sitting on a flatbed truck which is moving at an acceleration of a = 2.78 m/s2. Suppose that the crate does not slip as the truck undergoes a displacement, whose magnitude is r = 111 m.

How is an elliptical galaxy different from a spiral galaxy?

A small boat is carrying four people across a river. Without any paddling, the boat moves downstream at a steady speed of 5 m/s. If the average weight of the four people is 60 kg, then what is the speed of the boat after one person gets?

A wave is traveling through X. What can be known about X?

The atoms family atomic

Why does an ice cube feel cold when you touch it?

A locomotive is pulling 15 freight cars, each of which is loaded with the same amount of weight. The mass of each freight car (with its load) is 37,000 kg. If the train is accelerating at 0.

How do speed and acceleration differ

If your mass is 20kg, and you stand on the scale (witch is your force), and the acceleration due to gravity is10m/s^2, what does the scale says your weight is?

a block of wood has a length of 4 cm a width of 5 cm and a height of 10 cm what is the volume of the wood