Question

A car travelling at a speed of 72km\h takes 7.5 hours to complete a journey. If the car can travel at 90km\h, how long would it take to complete the same journey?​

Answer 1

Answer:

Here's your answer

Step-by-step explanation:

$\huge \mathfrak \red{answer}$

Speed, v 1 = 72 km/h

Time, t 1 = 7 ½ h = 15 ÷ 2 h

Speed, v 2 = 90 km/h

Time, t 2 = ?

Distance, d = v 1 × t 1 = 72 × 15 ÷ 2 = 540 km

For the car to travel same distance, d = 540 km with speed v 2 , then we have

Time, t 2 = d ÷ v 2

t 2 = 540 ÷ 90

= 6 h

$\huge \mathfrak \blue{ hope it will help you}$

And this is physics

Thank you