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the reaction time for an automobile driv...

the reaction time for an automobile drive os 0.6s if the automobile can be decelerated at `5 ms^(-2)` , calculate the total distance travelled in coming to stop fro, an intial velocity of `30kmh ^(-1)` after a singnal is observed.

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The reaction time for an automobile driver is 0.7 sec.If the automobile can be decelerated at 5m/s^(2 calculate the total distance travelled in coming to stop from an initial velocity of 8.33m/s after a signal is observed

[" 12.The reaction time for an automobile driver is "],[0.7" sec.If the automobile can be decelerated "],[" at "5m/s^(2)" calculate the total distance travelled "],[" in coming to stop from an initial velocity of "],[8.33m/s" after a signal is observed."],[[" 1) "12.77m," 2) "14.82m],[" 3) "16.83m," 4) "19.65m]]

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A driver travelling at 30 kph sees the light turn red at the intersection. If his reaction time is 0.6s , and the car can decelerate at 4.5 m//s^(2) , find the stopping distance ofthecar. What would the stopping distance be ifthe car were moving at 90 kph.

On seeing red light ahead, a driver takes 0.3 s to apply the brakes. This is called the reaction time of the driver. If he was initially driving at a speed of 36km/hr and application of the brakes causes a deceleration of 4.0m//s^(2) . Calculate the distance travelled by the car after he sees the red light.

A train travelling at 20 m s^(-1) accelerates at 0.5 m s^(-2) for 30 s. How far will it travel in this time ?

The driver of a car moving with a speed of 10 ms^(-1) sees a red light ahead, applies brakes and stops after covering 10 m distance. If the same car were moving with a speed of 20 ms^(-1) the same driver would have stopped the car after covering 30 m distance. Within what distance the car can be stopped if traveling with a velocity of 15 ms^(-1) Assume the same reaction time and the same deceleration in each case

A body travelling along a straight line traversed one thired of the total distance with a velocity 4 ms^(-10 . The remaining part of the distance was covered with a velocity 2 ms^(-1) for half the time and with velocity 6 ms^(-1) for the other hald of time . What is the mean velocity averaged over te whle time of motin ?

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SL ARORA-MECHANICS-Exercise
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  2. on turning a corner a car driving at 36kmh^(-1) finds a child on the r...

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  3. the reaction time for an automobile drive os 0.6s if the automobile c...

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  4. A car starts from rest and accelerates uniformly for 10 sto a velocity...

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  5. two tains one travelling at 72kmh^(-1) and other at 90 kmh ^(-1) are h...

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  6. A scooter starts from rest have an acceleration of 1 ms^(-2) while a c...

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  7. A ball rolls down an inclined trck 2 m long in 4s. Find acceleration

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  8. A ball rolls down an inclined trck 2 m long in 4s. Find time taken to ...

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  9. A ball rolls down an inclined trck 2 m long in 4s. Find speed of the b...

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  10. A bus starts from rest with constant acceleration of 5 ms^–2. At the s...

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  11. A bus starts from rest with a constant acceleration of 5 m//s^(2) at t...

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  12. A body starting from rest accelerates uniformly at the rate of 10cms^(...

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  13. A body covers 10 m in the second second and 25 m in fifth second of it...

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  14. A body covers a distance of 4 m in 3^(rd) second and 12m in 5^(th) sec...

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  15. An object is moving with uniform acceleration. Its velocity after 4 s ...

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  16. A stone is thrown vertically upwards with a velocity of 4.9 ms^(-1). C...

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  17. A stone is thrown vertically upwards with a velocity of 4.9 ms^(-1). C...

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  18. A stone is thrown vertically upwards with a velocity of 4.9 ms^(-1). C...

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  19. A stone is thrown vertically upwards with a velocity of 4.9 ms^(-1). C...

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  20. A stone thrown upwards from the top of a tower 85 m high, reaches the ...

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