Table of Contents
- 1 When the displacement of a body is directly proportional to the square of the time assertion?
- 2 Does the slope of velocity-time graph with time axis gives acceleration?
- 3 Which physical quantity is represented by displacement directly proportional to time?
- 4 What is the difference between assertion and reason in physics?
When the displacement of a body is directly proportional to the square of the time assertion?
Assertion : When the displacement of a body is directly proportional to the square of the time, then the body is moving with uniform acceleration. Reason : The slope of velocity-time graph with time axis gives acceleration.
When the displacement of a body is directly proportional to the square of the time then the body is moving with uniform acceleration Why?
Answer: (b) uniform acceleration When the rate of change of velocity with time of a body is constant then the object is said to be uniformly accelerated or in other words in uniform acceleration, the displacement of an object is proportional to square of time.
Is the displacement of a body is proportional to the square of time state the nature of motion of the body?
If the displacement of a body is proportional to the square of time, then the body is moving with. A. Uniform acceleration. After this, differentiate the velocity with respect to time to find the acceleration.
Does the slope of velocity-time graph with time axis gives acceleration?
It was learned earlier in Lesson 4 that the slope of the line on a velocity versus time graph is equal to the acceleration of the object.
What does the slope of a velocity time graph gives?
The slope of a velocity 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.
Is force required to move a body uniformly along a circle?
When a body is moving in a circle, its speed remains same but velocity changes due to change in the direction of motion of body. According to first law of motion, force is required to change the state of a body. But for a uniform motion acceleration is zero (for rectilinear motion).
Which physical quantity is represented by displacement directly proportional to time?
The first two equations of motion each describe one kinematic variable as a function of time. In essence… Velocity is directly proportional to time when acceleration is constant (v ∝ t). Displacement is proportional to time squared when acceleration is constant (∆s ∝ t2).
Why is s Square directly proportional?
Answer:S is directly proportional to t^ Were acceleration is constant . hence object moves with uniform motion. Thus,the object moves with uniform acceleration.
When is the body moving with uniform acceleration?
Assertion: When the displacement of a body is directly proportional to the square of the time. Then the body is moving with uniform acceleration. Reason: The slope of velocity-time graph with time axis gives acceleration. 1 point?
What is the difference between assertion and reason in physics?
Q.1. Assertion : An object may acquire acceleration even if it is moving at a constant speed. Reason : With change in the direction of motion, an object can acquire acceleration. Answer: (a) Both assertion and reason are true and reason is the correct explanation of assertion.
Why is the velocity graph parallel to the time axis?
Assertion : Velocity versus time graph of a particle in uniform motion along a straight path is a line parallel to the time axis. Reason : In uniform motion the velocity of a particle increases as the square of the time elapsed.
When an object is moving with a constant velocity and acceleration?
When an object is moving with a constant velocity (zero acceleration), the displacement versus time graph is a straight line and its slope is velocity. When an object is moving at a constant speed but its direction of motion changes, its velocity changes ant thus acceleration is produced.