Ask a Doubt
Request a call back

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

CBSE Class 11-science Answered

A car moves along x axis with constant acceleration= 2m/s2. At time t=0, the car is at position x= 4 m and has velocity =2m/s. a. Find the position and velocity at time t=2s. b. Where is the body when the velocity becomes 5m/s? 
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

Following is the data identified as given in the problem:

                 xo= 4m; vo =2m/s; a = 2m/s2 
a)      From the equation of motion:
    
      x =12 m
      The car will be located at position x=12 m with respect to the initial point from        where it started.
      Next to determine the velocity of the car at instant t=2s
      using
     
     
      The car will cross the position x=12 m at instant t=2s with velocity 6 m/s.
 
             b)   Now let us locate the position of the car when its velocity would becomes       5m/s.
            Using
           
           
            or  x= 9.25 m
            Therefore the car will be at position 9.25 m with respect to the initial point, when   its velocity becomes 5m/s.

Answered by | 04 Jun, 2014, 03:23: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 11-science - Physics
Q17. The velocity time relation of an electron starting from rest is given by v = kt where k = 6m / (s ^ 2) Calculate the distance traversed in 2 sec. 122
Asked by om636694 | 04 Mar, 2024, 09:10: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
state and prove law of conservation of energy in case of a freely falling bady
Asked by dhanapolla | 28 Jan, 2024, 10:40: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
if the linear momentum of a body is increased by 10% what will be the percentage change in it's kinetic energy
Asked by santoshyadav6673633 | 26 Jan, 2024, 04:55: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
obtain equations of motion for constant acceleration using calculus method
Asked by klvnsnthl | 25 Dec, 2023, 07:50: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
what is elevators
Asked by neerajchaurasiya651 | 10 Dec, 2023, 09:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
a mass of 0.1 kg falls freely under the action of gravity find the force acting on it it's momentum and kinetic energy after 10 sec ?
Asked by debasishbarik2006 | 17 Nov, 2023, 07:03: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
A stone is thrown upwards vertically. It has speed 10m/s when it reaches one half of its maximum height. Then find out how high it will rise?
Asked by udayanmazumder079 | 13 Jul, 2023, 09:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
An object starts from rest moves in constant acceleration A upto its max velocity and then retards at B until it comes to rest Cal the max velocity and the displacement if the total time of journey is T
Asked by sahamamoni597 | 27 Jun, 2023, 01:00: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
how to solve this
question image
Asked by sumityadv5665 | 24 Dec, 2022, 02:36: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
16dx2/dt2+ 25x = 0
question image
Asked by adityajaiswal80551 | 18 Dec, 2022, 06:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×