EASY
11th Maharashtra Board
IMPORTANT
Earn 100

Define free fall.

Important Questions on Motion in a Plane

MEDIUM
11th Maharashtra Board
IMPORTANT
If the motion of an object is described by x=f(t) write formula for instantaneous velocity and acceleration.
HARD
11th Maharashtra Board
IMPORTANT
Derive equations of motion for a particle moving in a plane and show that the motion can be resolved in two independent motions in mutually perpendicular directions.
MEDIUM
11th Maharashtra Board
IMPORTANT
Derive equations of motion graphically for a particle having uniform acceleration, moving along a straight line.
HARD
11th Maharashtra Board
IMPORTANT
Derive the formula for the range and maximum height achieved by a projectile thrown from the origin with initial velocity u at an angel θ to the horizontal.
HARD
11th Maharashtra Board
IMPORTANT
Define angular velocity. Derive an expression for centripetal force on a particle undergoing uniform circular motion. 
MEDIUM
11th Maharashtra Board
IMPORTANT
An airoplane has a run of 500 m to takeoff from the runway. It starts from rest and moves with constant acceleration to cover the runway in 30 sec. What is the velocity of the airoplane at the takeoff?
HARD
11th Maharashtra Board
IMPORTANT
A car moving along a straight road with a speed of 120 km/hr, is brought to rest by applying brakes. The car covers a distance of 100 m before it stops. Calculate (i) the average retardation of the car (ii) time taken by the car to come to rest.
MEDIUM
11th Maharashtra Board
IMPORTANT
A car travels at a speed of 50 km/hr for 30 minutes, at 30 km/hr for next 15 minutes and then 70 km/hr for next 45 minutes. What is the average speed of the car?