Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

JEE Class main Answered

position of a particle moving in a straight line given by y= 3t^3+3t^2+5 then find acceleration of the particle at Time t=2s
Asked by Pariharhingoliwala | 30 Sep, 2021, 08:06: AM
Expert Answer
position, y = 3 t3 + 3 t2 + 5   ........................... (1)
 
velocity as a function of time is obtained by differentiating eqn.(1)
 
velocity v = dy/dt = 9 t2 + 6 t ..........................( 2 )
 
acceleration as a function of time is obtained by differentiating eqn.(2)
 
acceleration a = d2y / dt2 = 18 t + 6
Answered by Thiyagarajan K | 30 Sep, 2021, 08:17: AM
Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
JEE main - Physics
A particle start from rest and move along a straight line with uniform acceleration the ratio of time to cover successive distance in the ratio 1:3 is
Asked by yadavashishkryadav | 13 Jan, 2023, 08:38: AM
ANSWERED BY EXPERT
JEE main - Physics
If we take a small piece of paper and throw it from a certain height then it is very difficult to anticipate the falling position of the paper... it's uncertain to predict but if we make that same small paper a ball then we can predict the falling position of the paper why so?
Asked by singhshreya102030 | 18 Aug, 2022, 09:09: PM
ANSWERED BY EXPERT
JEE main - Physics
if a ball dropped from point P crosses point Q in t seconds. The time taken by it to travel from Q to R,if PQ=QR
Asked by mrudhulaprakashmanda844 | 23 Jul, 2022, 10:26: PM
ANSWERED BY EXPERT
JEE main - Physics
A particle is at x= -10m at t= 1 sec. and moving with the velocity of 10m/s..particle is found at x=18m at t=3sec. find Acceleration of particle and position of particle at t=5sec.
Asked by anandprashant2022 | 21 Jul, 2022, 10:52: PM
ANSWERED BY EXPERT
JEE main - Physics
a partical is projected up from ground with initial speed v,not. starting from time t=0 to t=t1.then distance and displacement are equal or not
Asked by shalvisaroj | 19 Jul, 2022, 07:01: PM
ANSWERED BY EXPERT
JEE main - Physics
A vehicle travels from city A to city B. During the first part of the journey its average speed is whilst in the rest of the journey it is. By what factor is the length of the second part of the journey longer than that of the first part if the average speed calculated for
Asked by satyamsinghtech367 | 04 Jul, 2022, 09:06: PM
ANSWERED BY EXPERT
JEE main - Physics
A 5kg mass freely falling and experiencing a retarding force of 5v where v is the speed in m/sec has
Asked by sreekarreddypindi | 30 May, 2022, 12:15: PM
ANSWERED BY EXPERT
JEE main - Physics
Which One of the Following is Not Correct A. The Momentum is always conserved in Elastic Collision B. The Momentum is Always conserved in Non elastic Collision C. The Momentum is always conserved for Impulsive force acting On system D The Momentum of one body system under gravity is not conserved in Y Direction
Asked by pagalno.1234 | 05 May, 2022, 12:19: PM
ANSWERED BY EXPERT
JEE main - Physics
Two particles having mass ratio n : 1 are interconnected by a light inextensible string that passes over a smooth pulley. If the system is released, then the acceleration of the centre of mass of the system is
Asked by urvirohira15 | 09 Apr, 2022, 10:00: AM
ANSWERED BY EXPERT
JEE main - Physics
A cylindrical block of mass m and height h floats vertically in a liquid which is twice as dense as the block, as shown in the figure. A uniform rod of mass m/2 and length I is hinged to axis of the cylinder at A and to the wall of the vessel at B. The rod can rotate freely about point B. It is observed that the rod is horizontal in its equilibrium position. Angular frequency of small vertical oscillations of the cylinder will be m/2 B 12g V 7h
Asked by u_m67 | 09 Apr, 2022, 08:43: AM
ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get FREE Sample Mock Papers for Final Exams
Download Now
×