1

JEE Main 2019 (Online) 9th January Evening Slot

MCQ (Single Correct Answer)

+4

-1

The position co-ordinates of a particle moving in a 3-D coordinate system is given by

x = a cos$$\omega $$t

y = a sin$$\omega $$t and

z = a$$\omega $$t

The speed of the particle is :

x = a cos$$\omega $$t

y = a sin$$\omega $$t and

z = a$$\omega $$t

The speed of the particle is :

2

JEE Main 2019 (Online) 9th January Morning Slot

MCQ (Single Correct Answer)

+4

-1

A particle is moving with a velocity

$$\overrightarrow v \, = K(y\widehat i + x\widehat j),$$ where K is a constant.

The general equation for its path is :

$$\overrightarrow v \, = K(y\widehat i + x\widehat j),$$ where K is a constant.

The general equation for its path is :

3

JEE Main 2018 (Online) 15th April Evening Slot

MCQ (Single Correct Answer)

+4

-1

A man in a car at location Q on a straight highway is moving with speed $$\upsilon $$. He decides to reach a point P in a field at a distance d from the highway (point M) as shown in the figure. Speed of the car in the field is half to that on the highway. What should be the distance RM, so that the time taken to reach P is minimum ?

4

JEE Main 2013 (Offline)

MCQ (Single Correct Answer)

+4

-1

A projectile is given an initial velocity of $$\left( {\widehat i + 2\widehat j} \right)$$ m/s, where $${\widehat i}$$ is along the ground and $${\widehat j}$$ is along the
vertical. If g = 10 m/s

^{2}, the equation of its trajectory is:Questions Asked from Motion in a Plane (MCQ (Single Correct Answer))

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