Kinematics(Motion in 1D and 2D)

njoy_suri

JEE 2020 (Jan Month) Kinematics

7th Jan (S1) - No questions

7th Jan (S2) - No questions

8th Jan (S1) - 1 question

8th Jan (S2) - No questions

9th Jan (S1) - 1 question

9th Jan (S2) - 1 question

SMCC

JEE 2003

Q. A car, moving with a speed of 50 km/hr, can be stopped by brakes after at least 6 m. If the same car is moving at a speed of 100 km/hr, the minimum stopping distance is

A

B

12 m

18 m

D

C

6 m

24 m

JEE 2004

Q. A ball is released from the top of a tower of height h meters. It takes T seconds to reach the ground. What is the position of the ball at second

A

B

meters from the ground

meters from the ground

D

C

meters from the ground

meters from the ground

JEE 2005

Q. A car, starting from rest, accelerates at the rate f through a distance S, then continues at constant speed for time t and then decelerates at the rate f/2 to come to rest. If the total distance traversed is 15 S, then

A

B S = f t

D

C

JEE 2006

Q. A particle located at x = 0 at time t = 0, starts moving along with the positive x-direction with a velocity ‘v’ that varies as .The displacement of the particle varies with time as

A

B

t2

t

D

C

t3

t1/2

JEE 2003

Q. The coordinates of a moving particle at any time ‘t’ are given byx = αt3 and y = βt3. The speed of the particle at time ‘t’ is given by

A

B

D

C

JEE 2018

Q. All the graphs below are intended to represent the same motion. One of them does it incorrectly. Pick it up.

A B

DC

JEE 2009

Q. A particle has an initial velocity of and acceleration of . Its speed after 10 s is :

A

B 7 units

D

C

10 units

8.5 units

JEE 2011

Q. A water fountain on the ground sprinkles water all around it. If the speed of water coming out of the fountain is v, the maximum area around the fountain that gets wet is :

A

B

D

C

JEE 2020 (9 Jan)

Q. Position of a particle as a function of time is given as x2 = at2 + 2bt + c, where a, b, c are constants. Acceleration of particle varies with x-n then value of n is.

JEE 2020 (9 Jan)

Q. A particle starts moving from origin with velocity from origin and acceleration Find x-coordinate at the instant when y-coordinate of the particle is 32 m.

A

B

48

60

D

C

24

12

JEE 2020 (8 Jan)

Q. Position of two particles A and B as a function of time are given by XA = -3t2 + 8t + c and YB = 10 - 8t3. The velocity of B with respect to A at t = 1 is . Find v.

JEE 2019

Q. A body is projected at t = 0 with a velocity 10 m/s at an angle of 600 with the horizontal. The radius of curvature of its trajectory at t = 1 s is R. Neglecting air resistance and taking acceleration due to gravity g = 10 m/s2, the value of R is

A

B

2.5 m

2.8 m

D

C

5.1 m

10.3 m

SHMIC