04/10/23 1

1. A car starts from rest and travel 10s with uniform acceleration 5m/s2.

Find out its final velocity.

Here,u=0 m/st=10sa= 5m/s2

v=?

We know,

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04/10/23 2

2. A car travels with uniform acceleration 5m/s2 and after 10s its final velocity is 60m/s. What was its initial velocity?

Here,v=60 m/st=10sa= 5m/s2

u=?

We know,

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04/10/23 3

3. A car moving in uniform acceleration with initial velocity 10m/s and after 10s its final velocity is 60m/s. Find out its acceleration

Here,u=10m/s

t=10s v=60 m/sa= ?

2/5,

10/)/10/60(,

/)(,

,

,;

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04/10/23 4

4. A car travels with uniform acceleration 5m/s2. Its initial velocity is 10m/s and final velocity is 60m/s. Find out the time it traveled.

Here,a= 5m/s2

u=10m/sv=60 m/st=?

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04/10/23 5

5. A car starts from rest and is accelerated uniformly at the rate of 5 m/s2 for 10s. Find out the distance covered in meters.

Here,a= 5m/s2

t=10su=0m/sx=?

)(

250,

)10(52

1100,

2

1

221

2

Answer

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04/10/23 6

6. A super sonic fighter dropped a bomb when it was 2 km above the ground. Find out the time needed for the bomb to reach ground.

Here,a= 10 m/s2 x= 2 km

= 2000mu= 0m/st = ?

)(

20,

400,

)(102

102000,

2

1

22

221

2

Answer

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04/10/23 7

7. A super sonic fighter dropped a bomb when it was 2 km above the ground. Find out the velocity of the bomb when it touches ground.

Here,a= 10 m/s2 x= 2 km

= 2000mu= 0m/sv = ?

)(

200,

40000,

2000102)0(,

2

1

222

222

22

Answer

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04/10/23 8

8. A super sonic fighter dropped a bomb and after 20 s the bomb touches the ground. Find out the height of the fighter.

Here,a= 10 m/s2 u= 0m/st = 20 sx= ?

)(

2,

2000,

)20(102

120,

2

1

221

2

Answer

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04/10/23 9

9. A bullet of mass 10g and speed 72 km/h hit a sand bag and stopped in 0.1s. Find out the depth it enters into the sand bag and the retardation force.

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1,

2002

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2,;2

2

212

2222

Answer

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04/10/23 10

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04/10/23 11

10. A bullet of mass 10g and speed 72 km/h hit a sand bag and entered 1 m into the bag. Find out the time it take and the retardation force.

We know, Here,m= 10 g = 0.01kg u= 72 km/h =20 m/s x= 1 m v= 0 m/s t= ? F=?

2

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22

200,

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04/10/23 12

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04/10/23 13

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