contestada

When is the zebra in motion?
When is it not moving?

In motion:

Not moving:

Calculate What is the average speed of the zebra during the time between 0 s and 40 s?

When is the zebra in motion When is it not moving In motion Not moving Calculate What is the average speed of the zebra during the time between 0 s and 40 s class=

Respuesta :

The zebra is stationary(not moving) when the gradient of the distance/time graph is zero; between 20 and 40 seconds. The zebra is moving away from the origin when the gradient is positive; between 0 and 20 and 40 and 60 seconds. Average speed is the distance travelled/ time elapsed so the average speed is 280/60 = 4.67 m/s

Otras preguntas