1
AP EAPCET 2022 - 4th July Evening Shift
+1
-0

An object moving along $$X$$-axis with a uniform acceleration has velocity $$\mathbf{v}=\left(12 \mathrm{cms}^{-1}\right) \hat{\mathbf{i}}$$ at $$x=3 \mathrm{~cm}$$. After 2 s if it is at $$x=-5 \mathrm{~cm}$$, then its acceleration is

A
$$\mathbf{a}=\left(-16 \mathrm{~cms}^{-2}\right) \hat{i}$$
B
$$\mathbf{a}=\left(11 \mathrm{~cms}^{-2}\right) \hat{i}$$
C
$$\mathbf{a}=\left(-11 \mathrm{~cms}^{-2}\right) \hat{i}$$
D
$$\mathbf{a}=\left(8 \mathrm{~cms}^{-2}\right) \hat{i}$$
2
AP EAPCET 2022 - 4th July Evening Shift
+1
-0

$$y=\left(P t^2-Q t^3\right) \mathrm{~m}$$ is the vertical displacement of a ball which is moving in vertical plane. Then the maximum height that the ball can reach is

A
$$\frac{27 P^3}{4 Q^2}$$
B
$$\frac{4 Q^2}{27 P^3}$$
C
$$\frac{4 P^3}{27 Q^2}$$
D
$$\frac{27 Q^2}{4 P^3}$$
3
AP EAPCET 2022 - 4th July Morning Shift
+1
-0

A car covers a distance at speed of $$60 \mathrm{~km} \mathrm{~h}^{-1}$$. It returns and comes back to the original point moving at a speed of $$v$$. If the average speed for the round trip is $$48 \mathrm{~kmh}^{-1}$$, then the magnitude of $$v$$ is

A
$$40 \mathrm{~km} \mathrm{~h}^{-1}$$
B
$$36 \mathrm{~km} \mathrm{~h}^{-1}$$
C
$$44 \mathrm{~km} \mathrm{~h}^{-1}$$
D
$$32 \mathrm{~km~h}^{-1}$$
4
AP EAPCET 2021 - 20th August Morning Shift
+1
-0

The displacement of a particle starting from rest at $$t=0$$ is given by $$s=9 t^2-2 t^3$$. The time in seconds at which the particle will attain zero velocity is

A
8 s
B
6 s
C
4 s
D
3 s
EXAM MAP
Medical
NEET