Physics, asked by yaswanth29, 11 months ago

A car covers 30 km at a uniform speed of 60 km/h and the next 30 km at a uniform
speed of 40 km/h. Find the total time taken.​

Answers

Answered by Anonymous
4

Explanation:

पहले 30 km में 60 km/h की गति से चलती है ।

अतः कार 30 km की दूरी को आधे घंटे में तय करती है ।

आगे की 30 km की दूरी को वह 40 km/h की चाल से पूरा करती है ।

40 km = 1 hr

1 km = 1/40 hr

30 km = (1/40)*30 = 3/4 hour

अतः 60 km की कुल दूरी को तय करने में लगा समय = (1/2 + 3/4) hour

= (5/4) hour

= 1 hour + 1/4 hour

= 60 + 15

= 75 minute

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