Equations of motion can be used for a body having______.
The equations of motion are applicable only when the body moves with uniform acceleration. A body under constant acceleration is uniformly accelerated motion.
The magnitude of the displacement of an object is always______.
Thus, the magnitude of displacement may be equal to or smaller than that of distance.
For a body starting from rest, the displacement in 10 seconds, when it acquires 4 ms-1 in 2 seconds is______.
v = u + at
or = 2m/s2
s = ut +
= 100 m
Retardation of a body is expressed in________.
The v-t graph for the x-t graph given here is best drawn as
On a velocity-time graph, a horizontal straight line corresponds to motion at_______.
It is horizontal so, angle is zero and also acceleration is zero. Hence constant velocity.
For a uniformly accelerated body with initial and final velocities as u and v ms-1, the average velocity is _______.
Average velocity of an object is equal to its final velocity plus initial velocity, divided by 2.
Therefore, the answer is, (u + v) / 2
Which of the following graphs show that the body is at rest?
In figure A, we can see that the object continues to remain at a fixed place while the time keeps running. So, the object is at rest, because the object does not change its position with time.
The area below v - t graph is a measure of_______.
"Displacement" is the quantity that is measured by the area occupied under the velocity-time graph. Moving something or someone from its place or position is called displacement.
The slope of velocity-time graph gives_______.
The slope of a velocity-time graph represents the acceleration of the object. So, the value of the slope at a particular time represents the acceleration of the object at that instant.