Science, asked by comaldorigzal, 8 months ago

1. John runs to school which is at a distance of 500 m. He takes 25 seconds to reach to school. what is the speed of John with which he runs?

2. Jenni took 2 minutes at a speed of 10 m/s to reach a shop from her house. How far is the shop from Jenni’s house?

3. Raju drove for 3 hours at 50 miles per hour and for 2 hours at 60 miles per hour. What was his average speed for the whole journey?

4. A cyclist travels at 10 km per hour and then at 13 km per hour. Find his average speed?

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Answers

Answered by bsubasri2007

Answer:

Hello mate!

speed = total distance / time taken

1. 500 /25 = 20 m/s.

2. 2 mins= 120 seconds,

10 m/s = distance / 120

distance = 10 *120

= 1200 m.

3. speed = 50 + 60 / 2+3

= 110 /5

= 22 mph.

4. ave.speed = 10 + 13 /2

= 23 /2

= 11.5 kmph.

Answered by jesse162008

Answer:

Answer:

Hello mate!

speed = total distance / time taken

1. 500 /25 = 20 m/s.

2. 2 mins= 120 seconds,

10 m/s = distance / 120

distance = 10 *120

= 1200 m.

3. speed = 50 + 60 / 2+3

= 110 /5

= 22 mph.

4. ave.speed = 10 + 13 /2

= 23 /2

= 11.5 kmph.

Explanation:

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