A particle is dropped under gravity from rest from a height $h\left(g=9.8\text{\hspace{0.17em}}m/{\mathrm{sec}}^{2}\right)$ and it travels a distance 9h/25 in the last second, the height h is

(1) 100 m

(2) 122.5 m

(3) 145 m

(4) 167.5 m

Concept Questions :-

Uniformly accelerated motion
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A balloon is at a height of 81 m and is ascending upwards with a velocity of 12 m/s. A body of 2 kg weight is dropped from it. If $g=10\text{\hspace{0.17em}}m/{s}^{2}$, the body will reach the surface of the earth in

(1) 1.5 s

(2) 4.025 s

(3) 5.4 s

(4) 6.75 s

Concept Questions :-

Uniformly accelerated motion
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

An aeroplane is moving with a velocity u. It drops a packet from a height h. The time t taken by the packet in reaching the ground will be

(1) $\sqrt{\left(\frac{2g}{h}\right)}$

(2) $\sqrt{\left(\frac{2u}{g}\right)}$

(3) $\sqrt{\left(\frac{h}{2g}\right)}$

(4) $\sqrt{\left(\frac{2h}{g}\right)}$

Concept Questions :-

Uniformly accelerated motion
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

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

(1) 2.50 m

(2) 3.75 m

(3) 4.00 m

(4) 1.25 m

Concept Questions :-

Uniformly accelerated motion
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A ball is thrown vertically upwards from the top of a tower at $4.9\text{\hspace{0.17em}\hspace{0.17em}}m{s}^{-1}$. It strikes the pond near the base of the tower after 3 seconds. The height of the tower is

(1) 73.5 m

(2) 44.1 m

(3) 29.4 m

(4) None of these

Concept Questions :-

Uniformly accelerated motion
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

An aeroplane is moving with horizontal velocity u at height h. The velocity of a packet dropped from it on the earth's surface will be (g is acceleration due to gravity)

(1) $\sqrt{{u}^{2}+2gh}$

(2) $\sqrt{2gh}$

(3) 2 gh

(4) $\sqrt{{u}^{2}-2gh}$

Concept Questions :-

Uniformly accelerated motion
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A rocket is fired upward from the earth's surface such that it creates an acceleration of 19.6 m/sec2. If after 5 sec its engine is switched off, the maximum height of the rocket from earth's surface would be [MP PET 1995]

(1) 245 m

(2) 490 m

(3) 980 m

(4) 735 m

Concept Questions :-

Non-uniform acceleration
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A bullet is fired with a speed of $1000\text{\hspace{0.17em}\hspace{0.17em}}m/\mathrm{sec}$ in order to hit a target 100 m away. If $g=10\text{\hspace{0.17em}\hspace{0.17em}}m/{s}^{2}$, the gun should be aimed

(1) Directly towards the target

(2) 5 cm above the target

(3) 10 cm above the target

(4) 15 cm above the target

Concept Questions :-

Uniformly accelerated motion
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A body starts to fall freely under gravity. The distances covered by it in first, second and third second are in ratio

(1) 1 : 3 : 5

(2) 1 : 2 : 3

(3) 1 : 4 : 9

(4) 1 : 5 : 6

Concept Questions :-

Uniformly accelerated motion
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

P, Q and R are three balloons ascending with velocities U, 4U and 8U respectively. If stones of the same mass be dropped from each, when they are at the same height, then

(1) They reach the ground at the same time

(2) Stone from P reaches the ground first

(3) Stone from R reaches the ground first

(4) Stone from Q reaches the ground first

Concept Questions :-

Uniformly accelerated motion