A car is moving at a speed of 60 m/s, when the driver applies the brakes, which causes a deceleration of 2 m/s2. How many seconds will it take for the car to stop and how far will it travel till it stops

30s, 900m

Explanation: once the break is applied, the car will decelerate and the car will come to rest.

Since the car is coming to rest, final velocity (v) equals zero.

Hence u = 60 m/s, a = - 2m/s²

Recall that v = u + at

0 = 60 +( - 2)t

2t = 60, t = 60 /2 = 30s.

To get the distance covered before the car comes to rest, we have the formulae below

v² = u² + 2as

0² = 60² + 2(-2)s

0 = 3600 - 4s

4s = 3600

s = 3600/ 4 = 900m

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.