Question

For problems 2-3, a Ferrari accelerates from 0-60.0 miles per hour in 2.50 seconds.

2. What is its final speed, in m/s?
a 5.6 m/s
b. 13 m/s
c. 26.8 m/s
d. 1608 m/s
0-60.0 per near
2.50 seconds
3. What is its average acceleration?
a. 24.0 m/s
b. 10.7 m/s2
c. 38.6 m/s2
d. 13 m/s

Answer 1

Step-by-step explanation:

The first part of this question is simply asking us to convert the speed from miles per hour to meters per second:

`60.0(mi)/(hr)*(1hr)/(3600sec)*(1609.34m)/(1mi)=26.8(m)/(s)` choice C.

The next part wants us to use the equation for acceleration and find the acceleration:

`a=(v-v_0)/(t)` where v is final velocity, v0 is initial velocity, and t is time in seconds (which was one of the reasons we had to convert the initial velocity from 60.0 mph to m/s):

`a=(26.8-0)/(2.5)` and

a = 10.7 m/s/s, choice B.