MEDIUM

Earn 100

Derive an expression for relation between position and velocity of particle moving with constant acceleration.

Important Questions on Measurements and Motion

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Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

A bus of mass

2800 kg

is travelling at a speed of

90 \frac{km}{h}

. A retarding force of

5600 N

is applied on it for a distance of

100 m

. Its velocity reduces to

EASY

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

The initial velocity of a particle is

10 m / s

. It is moving with an acceleration of

4 m / s^{2}

. The distance covered by the particle after

2 s

HARD

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

Three particles A, B and C are thrown from top of a building with same speed. A is thrown upwards, B is thrown downwards and C is thrown horizontally, they hit the ground with speed $V_{A}$ , $V_{B}$ and $V_{C}$ respectively then

EASY

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 seconds is S1 and that covered in next 10 seconds is S2 then

EASY

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

A body is travelling with speed

20 m s^{- 1}

having acceleration

4 m s^{- 2}

the speed of the body after

2 s

MEDIUM

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

A stone is dropped into a well having free water surface at depth

44.1 m

. The splash is heard

3.13 \sec

after the stone is dropped. Find the velocity of sound in air (Take

g = 9.8 \frac{m}{s^{2}}

)

MEDIUM

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

The velocity – time graph of a moving body is shown in the figure. Which of the following statements is true?

Question Image

EASY

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

Two bodies of masses

m_{a}, m_{b} (m_{a} > m_{b})

are dropped from heights

‘ a ’, ‘ b ’

respectively. The ratio of velocities with which they reach ground is:

MEDIUM

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

Two steel balls of mass

1 kg

and

2 kg

and a lead ball of

10 kg

are released together from the top of tower

30 m

high. Assuming the path to be in vacuum:

MEDIUM

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

Which of the following is an equation for position - Time relation?

MEDIUM

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

Derive the equation of motion

v^{2} = u^{2} + 2 a s

(without using graph).

EASY

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

An aeroplane taking off from a field has a run of

500 m

. What is its acceleration and take-off velocity if it leaves the ground

10

seconds after the start?

EASY

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

A car travelling at

60 km / h

uniformly retards for

10 s

and attains a velocity of

45 km / h

. Find retardation.

MEDIUM

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

A body moving with a velocity of $6 m / s$ uniformly accelerates at $1.5 m / s^{2}$ . What will be its velocity after $5$ seconds and how far will it move during this time?

EASY

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

Derive the equation of motion

v = u + a t

(without using graph).

EASY

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

A bullet is fired into a wall with a velocity of

50 m / s

. If the bullet stops at a depth of

10 cm

inside the wall, find the retardation provided by the wall.

MEDIUM

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

The brakes applied to a car produces a negative acceleration of

6 m / s^{2}

. If the car takes

2

seconds to stop after applying the brakes, calculate the distance it travels during this time.

EASY

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

Starting from rest, Leena paddles her bicycle to attain a velocity of

6 m / s

30

seconds. Then she applies brakes so that the velocity of the bicycle comes down to

4 m / s

in the next

5

seconds. Calculate the acceleration of the bicycle in both cases.

HARD

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

Derive by graphical method

v^{2} = u^{2} + 2 a s

EASY

Science>Physics>Measurements and Motion>Equations of Motion by Graphical Method

A racing car has a uniform acceleration of

4 m / s^{2}

. How much distance will it cover in

10

seconds after the start?

Derive an expression for relation between position and velocity of particle moving with constant acceleration.

Important Questions on Measurements and Motion

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