Instantaneous Velocity
Trending Questions
The acceleration of a moving body can be found from
Area under velocity-time graph
Area under distance-time graph
Slope of distance-time graph
Slope of the velocity-time graph
The magnitude of average velocity is equal to the average speed if the motion of an object is along a straight line and in the same direction.
True
can’t predict
sometimes true and sometimes false
False
An electron starting from rest has a velocity that increases linearly with time as v=k t, where k=2ms−2. The distance travelled in the first 3 seconds will be
9 m
16 m
27 m
36 m
The numerical ratio of velocity to speed is:
Equal to 1
Greater than 1
Either less than or equal to 1
Less than 1
The angular velocity of a second hand of a clock is :
π/3 rad/s
π/30 rad/s
π/5 rad/s
2π rad/s
Under what condition is average velocity and instantaneous velocity gets equal?
A student sits atop a platform distance h above the ground. He throws a large object horizontally rightwards with speed u. A wind blowing parallel to the ground gives the object a convenient horizontal acceleration with magnitude a leftwards. This results in the object reaching the ground directly under the student. Determine the height h in terms of u, a, g. Ignore the effect of air resistance on vertical motion of the object.
none of these
A car is travelling with a constant speed of 5 m/s. suddenly superman comes and starts pushing from behind providing a constant acceleration of 5 m/s2. Find the velocity of the car after 2 sec.
10 m/s
25 m/s
15 m/s
35 m/s
The speed of an object in a particular direction is called
uniform speed
distance
velocity
displacement