johnnyphil4 johnnyphil4

22-06-2017
Physics

contestada

For Brainliest 15 points!

A car comes to a stop over a distance of 30.0 m after the driver applies the brakes. If the car decelerates at a constant rate of –3.50 m/s2, what was the car's original speed?

Respuesta :

AbhiGhost AbhiGhost

22-06-2017

Using kinematic equation,
v² - u² = 2as
0² - u² = -2(3.5)(30)
u² = 7(30)
u² = 210
u = 14.49 m/s.

Therefore original velocity was approx 14.5 m/s.

Answer Link

Otras preguntas

Negative impact of overhunting & over fishing?

Kung hindi sapat ang iyong pera paano mo nasosolisyunan ang kakulangan nito?

What does this primary source demonstrate about Medieval Europe? PLZ HELP ME!!!

Which fraction is equivalent to 1/8

If five bags of mulch covers 32 square feet, how many square feet could 16 bags cover?

I NEED THIS DONE ASAP!!! What is a large holding of land and power called?

Divya is painting a room. She uses 34 gallon of paint to cover 15 of a wall. If the walls are all the same size, how much paint will she need to cover one wall?

Allison decided to start by saving $10 the first week of the year in her bank. Then, the next week she would save $2 more dollars than the previous week and put

How did the united states help britian in spite of the neutrality act

HELP ASAP WITCh COLOR!!