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A particle moving in a straight line covers half of the distance with speed of $3 m s^{- 1}$ . The other half of the distance is covered in two equal time intervals with speed of $4.5 m s^{- 1}$ and $7.5 m s^{- 1}$ , respectively. The average speed of the particle during this motion is

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Important Questions on Motion in a Straight Line

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IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 3 - Motion in a Straight Line>TOPICWISE QUESTIONS>Q 11

A boy walks to his school at a distance of

6 km

with a speed of

2.5 km h^{- 1}

and walks back with a constant speed of

4 km h^{- 1}

. His average speed for the entire trip expressed in

km h^{- 1}

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Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 3 - Motion in a Straight Line>TOPICWISE QUESTIONS>Q 12

In $1.0 s$ , a particle goes from point $A$ to point $B$ as shown in the figure below. The magnitude of average velocity of the particle is
Question Image

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Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 3 - Motion in a Straight Line>TOPICWISE QUESTIONS>Q 13

A particle moves with constant speed

v

along a regular hexagon

A B C D E F

in the same order. Then, the magnitude of the average velocity for its motion from

A

to,

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Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 3 - Motion in a Straight Line>TOPICWISE QUESTIONS>Q 14

A body starts from rest and moves under a constant acceleration upto

20 s

. If it moves

s_{1}

distance in first

10 s

and

s_{2}

distance in next

10 s

, then

s_{2}

will be equal to

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Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 3 - Motion in a Straight Line>TOPICWISE QUESTIONS>Q 15

If a body starts from rest and travels

120 m

in the

8^{th}

second, then its acceleration is

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Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 3 - Motion in a Straight Line>TOPICWISE QUESTIONS>Q 16

If a train travelling at

72 km h^{- 1}

is to be brought to rest at a distance of

200 m

, then its retardation should be

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Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 3 - Motion in a Straight Line>TOPICWISE QUESTIONS>Q 17

When a train is stopped by applying brakes, it stops after travelling a distance of

50 m

. If the speed of train is doubled and the same retarding force is applied, then it stops after travelling a distance of

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Chapterwise/Topicwise Daily Practice Problems (DPP) Mechanics I NEET>Chapter 3 - Motion in a Straight Line>TOPICWISE QUESTIONS>Q 18

Two particles of masses

m_{1}

and

m_{2}

are dropped from heights

h_{1}

and

h_{2}

, respectively. They reach the earth's surface after time

t_{1}

and

t_{2}

, respectively. Then

A particle moving in a straight line covers half of the distance with speed of 3 m s-1. The other half of the distance is covered in two equal time intervals with speed of 4.5 m s-1 and 7.5 m s-1, respectively. The average speed of the particle during this motion is

Important Questions on Motion in a Straight Line

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A particle moving in a straight line covers half of the distance with speed of $3 m s^{- 1}$ . The other half of the distance is covered in two equal time intervals with speed of $4.5 m s^{- 1}$ and $7.5 m s^{- 1}$ , respectively. The average speed of the particle during this motion is