Question 7
MotionA car starts from rest and moves with a uniform acceleration of 30ms−2 for 20s. Calculate the distance covered at the end of the motion.
- A.6km
- B.12km
- C.18km
- D.24km
Show the answer and explanation
Answer: A (6km)
Explanation
s = ut + ½at2 = 0 + ½ × 30 × 202 = 6000 m = 6 km.