Question

A car accelerates from 10 km/h to 80km/h in 8.0s. What is the car's acceleration?

Answer 1

Any ideas?

Answer 2

Please help!

Answer 3

what is the definition of acceleration?

Answer 4

Do you have a definition of acceleration?

Answer 5

The rate at which velocity changes

Answer 6

exactly so what is the change in velocity here in the given time?

Answer 7

$$\huge a=\frac{\delta v}{\delta t}$$

Answer 8

so the answer will be (final velocity-initial velocity)/8

Answer 9

$$\Huge \delta v =v_{final}-v_{initial}$$

Answer 10

$$\Huge \delta t = t_{final}-t_{initial}$$

Answer 11

from 10 km/h to 80km/h in 8.0s

Answer 12

@OSHelper_Rico arent u getting it?

Answer 13

Watch out for the units of TIME!

Answer 14

2.4?

Answer 15

What are your units?

Answer 16

2.4 m/s^2

Answer 17

10x1000=10000 then 80x1000= 80000. There are 3600 sec in 1 hour. Then 10000/3600= 2.8(simplified), 80000/3600= 22.22.After that 22.22-2.8=19.2/8=2.4.Am I correct or wrong?

Answer 18

ure right