Distinguish between average velocity and instantaneous velocity. (Any two points) A man throws a ball to maximum horizontal distance of 160m. Calculate the maximum height reached.

A man throws a ball to maximum horizontal distance of 80 m. Calculate the maximum height reached.

A man throws a ball to maximum horizontal distance of 80 meters. Calculate the maximum height reached.

A man throws a ball to a maximum horizontal distance of 120m. Find the maximum height reached by the ball.

A cricketer can throw a ball to a maximum horizontal distance of 100 m. How much high above the ground on the cricketer throw the same ball?

A shell fired from a canon can cover maximum horizontal distance of 10 km. Then velocity of projection is

A body is thrown vertically upward with a velocity of 9.8 m/s. Calculate the maximum height attained by the body.(g=9.8 m/s^2)

Two bodies are thrown with the same velocily al an angle of 30^@ and 60^@ to the horizontal. The ratio of maximum heights reached is

A stone is thorwn vertically upwards with initial velocity of 40m//s . Taking g=10m//s^2 find the maximum height and total distance covered by stone

A projectile has initially the same horizontal velocity as it would acquire if it had moved from rest with uniform acceleration of 4 ms^-1 for half a minute. Ir the maximum height reached by it is 180 m, then the angle of projection is (Take g=10 m s^-2 )

Name the type of waves which are used for line of sight (LOS) communication. What is the range of their frequencies? A transmitting antenna at the top of a tower has a height of 20m and the height of the receiving antenna is 45m. Calculate the maximum distance between them for satisfactory communication in LOS mode. (Radius of the Earth = 6.4 xx 10^(6) m)