Home
Class 11
PHYSICS
The position of and object moving along ...

The position of and object moving along x-axis is given by `x=a +bt^(2)`, where `a=8.5 m` and b=2.5 ms^(-2) and (t) is measured in seconds. What is the velocity at `t=0`s and `t=2.0 s?` What is the average velocity between `t=2.0s` and `t=4.0 s`?

A

Velocity at t=2 see is zero

B

average velocity between t=2, t=4 sec is 15 m/s.

C

velocity at t =4 sec is 10 m/s

D

all the above are true

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

The position of an object moving along x-axis is given by x=a +bt^(2) , where a=8.5 m and b=2.5 ms^(-2) and (t) is measured in seconds. What is the velocity at t=1= 0 s and t=2.0 s? What is the average velocity between t=2.0s and t=4.0 s ? a) 5 m/s b) 10 m/s c) 15 m/s d) 20 m/s

The position of and object moving along x-axis is gi en by x=a +bt^(2) , wher a=8.5 m and b=2.5 ms^(-2) and (t) is measured in ceconds. What is the velcoity at t=1= 0 s and t=2.0 s? What is the average velocity between t=2.0s and t=4.0 s ?

The position of an object moving along x-axis is given by x =a+bt^(2) where a =8.5 m, b=2.5 ms^(-2) and t is measured in seconds.Then which of the following is true ?

A particle is moving along x-axis. The position of the particle at any instant is given by x= a+bt^(2) where ,a= 6 m and b= 3.5 ms^(-2) 't' is measured in second .Find (i) the velocity of the particle at 1s and (ii) the average velocity between 3s and 6s

A particle is moving along x-axis. The position of the particle at any instant is given by x = a + bt^(2)," where, "a = 6m and b =3.5 ms^(-2) , t is measurved in seconds. Find. Velocity of the particle at t = 0 and t = 3s

The position of a body moving along x-axis at time t is given by x= (t^(2)-4t+6)m . The velocity of the body at time t = 3s is

The position (in meters) of a particle moving on the x-axis is given by: x=2+9t +3t^(2) -t^(3) , where t is time in seconds . The distance travelled by the particle between t= 1s and t= 4s is m.

The position of a particle along the x-axis is given by the equation, x=t^(3)-6t^(2)+9t , where t is measured in seconds and x in meters. (a) Find the velocity at time t (b) What is the velocity at t = 2 s, at = t = 4 s? (c) What is the time instant, when particle is at rest?

The velocity of an object moving rectilinearly is given as a function of time by v=4t-3t^(2) where v is in m/s and t is in seconds. The average velocity if particle between t=0 to t=2 seconds is

The position of object moving along an x-axis is given by x=3t-4t^(2)+t^(3) , where x is in meters and t in seconds. Find the position of the object at the following values of t : (i) 2s, (ii) 4s, (iii) What is the object's displacement between t = 0 s and t = 4 s ? and (iv) What is its average vvelocity for the time interval from t = 2 s to t = 4 ?