Question 4 Multiple Choice Worth 2 points) (02.07 MC)
A car increases from 15 km/s to 45 km/s in 5 seconds. Calculate the average acceleration of the car during these 5 seconds

Explanation:

ACCELERATION IS THE RATE OF CHANGE OF VELOCITY

i.e a = ΔV/ Δt where ΔV is final velocity – initial velocity and Δt is t final – t initial

a = (45–15)/5= 6 km/s²

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

uranium fissions/breaks up giving out energy and neutrons