What is the average speed and average velocity till t = 20s?

1 m/s, -1 m/s

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1m/s, 0

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0, 1 m/s

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0, 0

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Solution

The correct option is B
1m/s, 0

For speed,

Total distance = AB + BC + CD

= 10 m + 0 + 10 m

= 20 m

$∴ A v e r a g e s p e e d = \frac{d}{t} = \frac{20}{20} = 1 m / s$

For velocity,

At t = 20s, the displacement is 0.

$∴ A v e r a g e v e l o c i t y = \frac{o}{t} = 0$

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Similar questions

What is the average speed and average velocity till t = 20s?

Q. A car travels from Bangalore to Mumbai and returns in

20 h o u r s

. What is the average velocity and average speed of the car if odometer reading of the car, when it started was

2200 k m

and when finished was

3800 k m

A car starts from Bangalore to Mumbai and returns in 20 hours. What is the average velocity and average speed of the car if the odometer reading of the car when it started was 2200 km and when it finished was 3800 km?

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What is the average speed and average velocity till t = 20s?

The correct option is B 1m/s, 0 For speed, Total distance = AB + BC + CD = 10 m + 0 + 10 m = 20 m ∴Average speed=dt=2020=1m/s For velocity, At t = 20s, the displacement is 0. ∴Average velocity=ot=0

The correct option is B
1m/s, 0

For speed,

Total distance = AB + BC + CD

= 10 m + 0 + 10 m

= 20 m

$∴ A v e r a g e s p e e d = \frac{d}{t} = \frac{20}{20} = 1 m / s$

For velocity,

At t = 20s, the displacement is 0.

$∴ A v e r a g e v e l o c i t y = \frac{o}{t} = 0$