1
KCET 2025
MCQ (Single Correct Answer)
+1
-0

A particle is in uniform circular motion. The equation of its trajectory is given by $(x-2)^2+y^2=25$, where x and y are in meter. The speed of the particle is $2 \mathrm{~ms}^{-1}$, when the particle attains the lowest ' y ' co-ordinate, the acceleration of the particle is (in $\mathrm{ms}^{-2}$ )

A
$0.4 \hat{\mathrm{j}}$
B
$0.8 \hat{\mathrm{i}}$
C
$0.8 \hat{\mathrm{j}}$
D
$0.4 \hat{\mathrm{i}}$
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

An athlete runs along a circular track of diameter 80 m . The distance travelled and the magnitude of displacement of the athlete when he covers $3 / 4$ th of the circle is (in m )

A
$60 \pi, 40 \sqrt{2}$
B
$40 \pi, 60 \sqrt{2}$
C
$120 \pi, 80 \sqrt{2}$
D
$80 \pi, 120 \sqrt{2}$
3
KCET 2023
MCQ (Single Correct Answer)
+1
-0

A particle is in uniform circular motion, related to one complete revolution of the particle, which among the statements is incorrect?

A
Average acceleration of the particle is zero.
B
Displacement of the particle is zero.
C
Average speed of the particle is zero.
D
Average velocity of the particle is zero.
4
KCET 2022
MCQ (Single Correct Answer)
+1
-0

A car is moving in a circular horizontal track of radius $$10 \mathrm{~m}$$ with a constant speed of $$10 \mathrm{~ms}^{-1}$$. A bob is suspended from the roof of the car by a light wire of length $$1.0 \mathrm{~m}$$. The angle made by the wire with the vertical is (in rad)

A
$$\frac{\pi}{4}$$
B
zero
C
$$\frac{\pi}{3}$$
D
$$\frac{\pi}{6}$$
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