?
A is travelling at 72 km per hour on a highway while B is travelling at a speed of 25 mitres per second. What us the difference in their speeds in mitres per second ?
Answer & Solution
Correct Answer:
Option
D
A's speed :
= 72 km/hr
= $$\left( {72 \times \frac{5}{{18}}} \right)$$ m/sec
= 20 m/sec
B's speed = 25 m/sec
Difference :
= (25 - 20) m/sec
= 5 m/sec
= 72 km/hr
= $$\left( {72 \times \frac{5}{{18}}} \right)$$ m/sec
= 20 m/sec
B's speed = 25 m/sec
Difference :
= (25 - 20) m/sec
= 5 m/sec
Join the Discussion
Login to post a comment or share your explanation.
Login