Aao padhenge
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A particle moves in a circle of radius 4.0 cm clock wise at constant speed of 2 cm/s . If x cap and
A cyclist is riding with a speed of 27km/h, as he approaches to circular turn on the road of radius
The radius of earth's orbit around the sun is 1.5 X 1011 meter. Calculate the linear and angular vel
An insect is trapped in a circular grooves of radius 12 cm moves along the grooves steadily and com
A body of mass 10kg revolves in a circle of diameter 0.40 m, making 1000 revolutions per minute.
Calculate the angular speed of fly wheel making 420 revolutions per minute.
Which is greater: the angular velocity of hour hand of watch or angular velocity of earth around its
A target is fixed on the top of a pole 13 metre high. A person standing at a distance of 50 metre
At what angle should a body be projected with a velocity 24 m/s, just to pass over the obstacle 16 m
A machine gun is mounted on the top of a tower 100 m high. At what angle should the gun be inclined
A hunter aims his gun and fires a bullet directly at a monkey on a tree. At the instant the bullet
Two projectiles are thrown with different velocities and at different angles so as to cover the same
Show that there are two values of time for which a projectile is at the same height. Also show that
Show that there are two angles of projection for which the horizontal range is the same. Also show t
If R is the horizontal range for θ inclination and h is the maximum height reached by the projectile
A ball is thrown at an angle θ and another ball is thrown at an angle (90° − θ) with the horizontal
Show that a given gun will shoot three times as high when elevated at an angle of 60° as when fired
Prove that the maximum horizontal range is four times the maximum height attained by the projectile,
Find the angle of projection for which the horizontal range and the maximum height are equal.
A boy stands at 39.2 m from a building and throws a ball which just passes through a window 19.6 m a
A projectile has a range of 50 m and reaches a maximum height of 10 m. Calculate the angle at which
A body is projected with a velocity of 30 ms⁻¹ at an angle of 30° with the vertical. Find the maximu
A helicopter on a flood relief mission flying horizontally with a speed u at an altitude h, has to d
A particle is projected horizontally with a speed u from the top of plane inclined at an angle θ wit
A marksman wishes to hit a target just in the same level as the line of sight. How high from the tar
A bomb is dropped from an aeroplane when it is directly above a target at a height of 1000 m. The ae
A hiker stands on the edge of a cliff 490 m above the ground and throws a stone horizontally with an
40 Prove that:(A + 2B)·(2A - 3B) = 2A² + AB cos θ - 6B²This appears to be a vector algebra problem a
A body constrained to move along the z-axis of a co-ordinate system is subjected to a constant force
If vectors P, Q and R have magnitudes 5, 12 and 13 units and P+Q=R, find the angle between Q and R.