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What is the correct answer?

4

A train travelling at 20 m s-1 accelerates at 0.5 m s-2 for 30 s, the distance travelled by train is

A. 825 m

B. 700 m

C. 650 m

D. 600 m

Correct Answer :

A. 825 m


Related Questions

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An object whose velocity is changing is said to be in a state of

A. acceleration

B. rest

C. equilibrium

D. Brownian motion

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If the gradient of a graph is negative, then the acceleration is

A. positive

B. negative

C. zero

D. 1

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4

If initial velocity of an object is zero, then distance covered by it in time t and acceleration of 9.8 m s-2 would be

A. 2.9 t2

B. 3 t2

C. 4 t2

D. 4.9 t2

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4

When ball having a projectile motion is rising up, it

A. decelerates

B. accelerates

C. rises up with constant acceleration

D. acceleration becomes zero

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4

Area under velocity-time graph tells us the

A. time

B. acceleration

C. displacement

D. velocity

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Gradient of velocity-time graph tells us about object's

A. velocity

B. displacement

C. distance

D. acceleration

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4

If we get a straight line with positive slope then its acceleration is

A. increasing

B. decreasing

C. zero

D. constant

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If a car starting from rest reaches a velocity of 18 m s-1 after 6.0 s then its acceleration is

A. 1 m s-2

B. 2 m s-2

C. 3 m s-2

D. 4 m s-2

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4

Gradient of line of velocity-time graph is tells us the

A. velocity

B. acceleration

C. distance

D. time

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4

If a student drops a stone from a cliff of height 30 m and the time it takes to reach the ground is 2.6 s, then the acceleration due to gravity is

A. 9 m s-1

B. 10 m s-2

C. 4 m s-2

D. 8.8 m s-2

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4

Acceleration of free fall depends on the

A. surface

B. weight of object

C. distance from center of Earth

D. size of object

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4

Horizontal component of a bouncing ball is

A. affected by gravity

B. unaffected by gravity

C. affected by weight

D. affected by contact force

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4

Projectile will attain its maximum range, if it is fired at an angle of

A. 30°

B. 47°

C. 90°

D. 45°

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4

If a spinster staring from rest has acceleration of 5 m s-2 during 1st 2.0 s of race then her velocity after 2 s is

A. 20 m s-1

B. 10 m s-1

C. 15 m s-1

D. 5 m s-1

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4

A train travelling at 20 m s-1 accelerates at 0.5 m s-2 for 30 s, the distance travelled by train is

A. 825 m

B. 700 m

C. 650 m

D. 600 m

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4

Horizontal distance travelled by a ball if it's thrown with initial velocity of 20 m s-1 at an angle of 30° is

A. 24 m

B. 56 m

C. 35.3 m

D. 36.3 m

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4

Acceleration of train when it is moving steadily from 4.0 m s-1 to 20 m s-1 in 100 s is

A. 1 m s-2

B. 2 m s-2

C. 0.16 m s-2

D. 3 m s-2

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4

Only force acting on a bouncing ball is

A. gravity

B. weight of ball

C. friction

D. a and b both

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4

As the ball falls towards the ground, its velocity

A. increases

B. decreases

C. remains constant

D. becomes zero

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4

Which is the correct unit for measuring terrestrial distance ?

A. Angstrom

B. centimetre

C. Light year

D. Kilometre

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4

A stone is thrown upwards with initial velocity of 20 m s-1, the height that stone will reach would be

A. 20 m

B. 30 m

C. 40 m

D. 50 m

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4

Accelerometer detects the

A. small acceleration

B. large acceleration

C. small deceleration

D. large acceleration and deceleration

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Equation of motion can be used for

A. straight line motion only

B. curved motion only

C. motion along the circular path

D. all types of motion