JEE Main 2021 (Online) 27th August Evening Shift | Motion in a Plane Question 40 | Physics

A player kicks a football with an initial speed of 25 ms^$$-$$1 at an angle of 45$$^\circ$$ from the ground. What are the maximum height and the time taken by the football to reach at the highest point during motion ? (Take g = 10 ms^$$-$$2)

h_max = 10 m

T = 2.5 s

h_max = 15.625 m

T = 3.54 s

h_max = 15.625 m

T = 1.77 s

h_max = 3.54 m

T = 0.125 s

JEE Main 2021 (Online) 26th August Evening Shift

MCQ (Single Correct Answer)

-1

A bomb is dropped by fighter plane flying horizontally. To an observer sitting in the plane, the trajectory of the bomb is a :

hyperbola

parabola in the direction of motion of plane

straight line vertically down the plane

parabola in a direction opposite to the motion of plane

JEE Main 2021 (Online) 20th July Morning Shift

MCQ (Single Correct Answer)

-1

A butterfly is flying with a velocity $$4\sqrt 2 $$ m/s in North-East direction. Wind is slowly blowing at 1 m/s from North to South. The resultant displacement of the butterfly in 3 seconds is :

$$12\sqrt 2 $$ m

20 m

3 m

15 m

JEE Main 2021 (Online) 16th March Evening Shift

MCQ (Single Correct Answer)

-1

A mosquito is moving with a velocity $$\overrightarrow v = 0.5{t^2}\widehat i + 3t\widehat j + 9\widehat k$$ m/s and accelerating in uniform conditions. What will be the direction of mosquito after 2 s?

$${\tan ^{ - 1}}\left( {{\sqrt {85} } \over 6}\right)$$ from y-axis

$${\tan ^{ - 1}}\left( {{5 \over 2}} \right)$$ from y-axis

$${\tan ^{ - 1}}\left( {{2 \over 3}} \right)$$ from x-axis

$${\tan ^{ - 1}}\left( {{5 \over 2}} \right)$$ from x-axis

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