Question

ENERGY SAVERS RACE, BRAIN BURNER. This question is about solar cars at the Chuck Norris Institute of Technology, CNIT, in Ocala, Florida. In one race, a silicon-dioxide crystal powers a car (mass = 120 kg) from rest to a top speed of 10 m/sec in a time of 1.2 sec.
Question: For what distance does the solar car accelerate to get to top speed?
a. 6.0 m
b. 150 m
c. 2.0 m
d. 9.8 m
e. 44.1 m

Answer 1

Answer:

a) d = 6.0 m

Explanation:

Since car is accelerating at uniform rate then here we can say that the distance moved by the car with uniform acceleration is given as

$d = \frac{(v_f + v_i)}{2} \times t$

here we know that

$v_f = 10 m/s$

$v_i = 0$

$t = 1.2 s$

now we will have

$d = \frac{(10 + 0)}{2}\times 1.2$

$d = 5 \times 1.2$

$d = 6.0 m$