A car starting from rest accelerates uniformly to acquire a speed $20\ km\ h ^{-1}$ in $30\min .$ The distance travelled by a car in this time interval will be$..........$
- A$600\ km$
- ✓$5\ km$
- C$6\ km$
- D$10\ km$
Answer: B.
View full solution →Question types
Motion in One Dimension question types
120 questions across 5 question groups — pick any mix to generate a PHYSICS paper with step-by-step answer keys.
120
Questions
5
Question groups
5
Question types
01
MCQ
10 Q→02[1 Mark Question Answer]
33 Q→03[2 Mark Question Answer]
41 Q→04[3 Mark Question Answer]
17 Q→05[5 Mark Question Answer]
19 Q→Sample Questions
Motion in One Dimension questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
The correct equation of motion is :
- A$v = u + aS$
- B$v=u t+a$
- C$S =u t+\frac{1}{2} a t$
- ✓$v = u + at$
Answer: D.
View full solution →For uniform motion $...........$
- AThe distance-time graph is a straight line parallel to the time axis.
- BThe speed-time graph is a straight line inclined to the time axis.
- ✓The speed-time graph is a straight line parallel to the time axis.
- DThe acceleration-time graph is a straight line parallel to the time axis.
Answer: C.
View full solution →For a uniformly retarded motion, the velocity-time graph is $...........$
- AA curve
- BA straight line parallel to the time axis
- CA straight line perpendicular to the time axis
- ✓A straight line inclined to the time axis
Answer: D.
View full solution →The velocity-time graph of a body in motion is a straight line inclined to the time axis. The correct statement is$..............$
- AVelocity is uniform
- ✓Acceleration is uniform
- CBoth velocity and acceleration are uniform
- DNeither velocity nor acceleration is uniform.
Answer: B.
View full solution →Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts $AB, BC$ and $CD.$
State how is the distance travelled in any part determined from this graph .
View full solution →State how is the distance travelled in any part determined from this graph .
Figure shows the displacement-time graph of two vehicles $A$ and $B$ moving along a straight road. Which vehicle is moving faster? Give reason.
View full solution →What can you say about the nature of motion of a body if its displacement-time graph is A curve.
What can you say about the nature of motion of a body if its displacement-time graph is A straight line inclined to the time axis with an obtuse angle?
What can you say about the nature of motion of a body if its displacement-time graph is A straight line inclined to the time axis with an acute angle?
A body starts to slide over a horizontal surface with an initial velocity of $0.5 ms^{-1}.$ Due to friction, its velocity decreases at the rate of $0.05 ms^{-2}$. How much time will it take for the body to stop?
View full solution →Write an expression for the distance S covered in time t by a body which is initially at rest and starts moving with a constant acceleration a.
A body starts with an initial velocity of $10 m s ^{-1}$ and acceleration $5 m s ^{-2}$. Find the distance covered by it in 5 s .
View full solution →A body starts from rest with uniform acceleration $2 m s ^{-2}$. Find the distance covered by the body in 2 s .
View full solution →Write three equations of uniformly accelerated motion relating the initial velocity (u), final velocity (v), time (t), acceleration (a) and displacement (S).
A train moving with a velocity of $20 m s^{-1} $is brought to rest by applying brakes in $5 s$. Calculate the retardation.
View full solution →A bullet initially moving with a velocity $20 \ m/s$ strikes a target and comes to rest after penetrating a distance $10 \ cm$ into the target. Calculate the retardation caused by the target.
View full solution →A body, initially at rest, starts moving with a constant acceleration $2 m s ^{-2}$. Calculate: (i) the velocity acquired and (ii) the distance travelled in 5 s .
View full solution →A vehicle is accelerating on a straight road. Its velocity at any instant is $30 km / h$. After 2 s , it is $33.6 km / h$, and after further 2 s , it is $37.2 km / h$. Find the acceleration of the vehicle in $m s ^{-2}$. Is the acceleration uniform?
View full solution →Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts $AB, BC$ and $CD.$
Compare the distance travelled in part BC with the distance travelled in part $AB$.
View full solution →Compare the distance travelled in part BC with the distance travelled in part $AB$.
A car travels a distance 100 m with constant acceleration and average velocity of $20 ms^{-1}$. The final velocity acquired by the car is $25 ms^{-1}$. Find (i) The initial velocity. (ii) Acceleration of the car.
View full solution →A train is moving with a velocity of $90 km h^{-1} $. It is brought to stop by applying the brakes which produce a retardation of $0.5 ms^{-2}$ Find :
(i) The velocity after $10 s$ , and
(ii) the time taken by the train to come to rest .
View full solution →(i) The velocity after $10 s$ , and
(ii) the time taken by the train to come to rest .
A train travels with a speed of $60 km h ^{-1}$ from station $A$ to station $B$ and then comes back with a speed $80 km^{-1}$ from station $B$ to station A. Find -
i. The average speed
ii. The average velocity of the train.
View full solution →i. The average speed
ii. The average velocity of the train.
Derive the following equations for uniformly accelerated motion:
(i) $v = u + at$
(ii) $S = ut +\frac{1}{2} at ^2$
(iii) $v ^2= u ^2+2 aS$
where the symbols have their usual meanings.
View full solution →(i) $v = u + at$
(ii) $S = ut +\frac{1}{2} at ^2$
(iii) $v ^2= u ^2+2 aS$
where the symbols have their usual meanings.
A train starts from rest and accelerates uniformly at a rate of $2 m s ^{-2}$ for $10 $s . It then maintains a constant speed for 200 s . The brakes are then applied and the train is uniformly retarded and comes to rest in $50$ s . Find (i) The maximum velocity reached, (ii) The retardation in the last $50 s$ , (iii) The total distance travelled, (iv) The average velocity of the train.
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