What is the velocity at 4 sec, if velocity at = 0 is 8m/s

What is average velocity of gas, if velocities of three molecules of gas are 3 m/s, 4 m/s and 5 m/s?

The absolute refractive index of water is 1.5. What is the velocity of light in water? (Velocity of light in vacuum = 3 xx 10^(8) m//s )

The absolute refractive index of water is 1.36. What is the velocity of light in water ? (Velocity of light in vacuum =3xx10^(8) m/s)

A body is thrown at an angle 30^(@) to the horizontal with the velocity of 30m// After 1 sec. its velocity will be ("in"m//s) (g=10 m//s^(2))

A car is moving eastward with velocity 10 m/s. In 20 sec, the velocity change to 10 m/s northwards. The averge acceleration in this time.

For the given situation,what is the velocity of image of object 0 (in "m/s" )? ,

For the given situation, what is the velocity of image of object 0 in m/s ?]

If velocity of flow is 4 m/s, then velocity head is

[" For the given situation,"],[" what is the velocity of "],[" image of object "0" (in "],[m/s)?],[qquad [vec o*5m/s],[:.]]

In the above example, the velocity after 2 sec will be - (in m/sec)