Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 3

EASY

JEE Main

IMPORTANT

Earn 100

A particle can travel from point $A$ to $B$ from two different paths $1$ and $2$ as shown, in same interval of time. Then, which of the following is incorrect?

50% studentsanswered this correctly

Important Questions on Kinematics

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 4

If the velocity of a particle is $\vec{v} = (3 \hat{i} + 4 t \hat{j}) m s^{- 1}$ , find the acceleration of the particle at $t = 1 s$ .

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 5

When a ball is thrown up vertically with a velocity

v_{0}

it reaches a height

h

. If one wishes to triple the maximum height, then the ball should be thrown with a velocity of

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 6

A ball is dropped from a height of

19.6 m

. The distance covered by it in the last second is

MEDIUM

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 7

Water drops fall at regular intervals from a tap which is

5 m

above the ground. The third drop is leaving the tap at the instant the first drop touches the ground. How far above the ground is the second drop at that instant? (Take

g = 10 m s^{- 2}

).

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 8

A parachutist with total weight

75 kg

drops vertically onto a sandy ground with a speed of

2 m s^{- 1}

and comes to a halt over a distance of

0.25 m

. The average force from the ground on her is close to-

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 9

A person goes from point

P

to point

Q

covering

\frac{1}{3}

of the distance with speed

10 km h^{- 1}

, the next

\frac{1}{3}

of the distance at

20 km h^{- 1}

and the last

\frac{1}{3}

of the distance at

60 km h^{- 1}

. The average speed of the person is

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 10

If a ball is thrown at a velocity of

45 m s^{- 1}

in vertical upward direction, then what would be the velocity profile as a function of height? Assume

g = 10 m s^{- 2}

.

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 2 - Kinematics>Level 1>Q 11

The initial velocity of a particle is

10 m s^{- 1}

and its retardation is

2 m s^{- 2} .

The distance covered in the fifth second of the motion will be