Kinematics Question 98
Question: Assertion : The displacement-time graph of a body moving with uniform acceleration is a straight line. Reason : The displacement is proportional to time for uniformly accelerated motion.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: D
Solution:
The displacement of a body moving in straight line it’s given by, $ s=ut+\frac{1}{2}at^{2}. $ this it’s a equation of a parabola, not straight line. Therefore the displacement-time graph it’s a parabola. The displacement time graph will be straight line, if acceleration of body is zero or body moving with uniform velocity.
