Question

A particle moves along a straight line following the law
V= u+√(2as) then its acceleration
a. Increase with time
b. Decrease with time
c. Constant
d. N.O.T.

Answer 1

Answer on Question #53223, Physics / Mechanics | Kinematics | Dynamics

**Given:**

$$v = u + \sqrt{2as}$$

A particle moves along a straight line!

$$u = const$$

**Solution:**

$$\begin{array}{l} s = At + B \\ \Rightarrow \quad v = A \\ a = \frac{A - u}{At + B} \sim \frac{1}{t} \rightarrow 0 \\ \end{array}$$

**Answer:** b) Decrease with time

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