Question

both no. 5 and 6 are multiple answer type. plzz answer with explanation

Answer 1

5)i) Incorrect because $x_Q-x_P\ne constant$
ii) Correct as concavity of curve Q is greater.
iii) Correct as
$a_Q>a_P\\\Rightarrow a_{QP}>0$
$\Rightarrow v_{QP}$ is increasing.
iv)Incorrect as it is opposite of the above.
6)i) Incorrect, Speed is given by $|v|$, which is decreasing then increasing.
ii) Correct, direction of motion is given by the sign of velocity, which changes from negative to positive.
iii) Correct, Displacement is equal to the area of v-t graph which is not equal to zero.
iv) Incorrect, Acceleration is the slope of v-t graph which remains positive.