વર્ટિકલ સાથે `30^(@)`ના ખૂણા પર `30 ms^(-1)`ના વેગ સાથે બોડીનો અંદાજ છે.

Calcuate the least mass of air that will resonate with a tuning fork of frequency 340 Hz in a closed tube of diameter 4 cm at 30^(@)C . (Velocity of sound in air at 30^(@) = 350 ms^(-1) and density of air at 30^(@)C = 1.3 kg per cubie metre). Neglect end -correction .

The velocity acquired by a body moving with uniformaccelertion is 30 m s^(-1) in 2s and 60 ms ^(-1) in 4 s , The initial velocity is .

If the velocity of sound in air at 0^(@)C " is " 332 ms^(-1) , its velocity at 30^(@)C is

A body is projected at an angle of 30^(@) with the horizontal and with a speed of 30ms^(-1) . What is the angle with the horizontal after 1.5 second? (g=10ms^(-2))

A ball is projected from the bottom of an inclined plane of inclination 30^@ , with a velocity of 30 ms^(-1) , at an angle of 30^@ with the inclined plane. If g = 10 ms^(-2) , then the range of the ball on given inclined plane is

A body is projected at angle 30^(@) to horizontal with a velocity 50 ms^(-1) .Its time of flight is

A man A moves due to East with velocity 6 ms^(-1) and another man B moves in N-30^(@)E with 6 ms^(-1) . Find the velocity of B w.r.t. A.

Calculate the total energy possessed by one kg of water at a point where the pressure is 30 gf//mm^(2) , velocity is 0.1 ms^(-1) and height is 60 cm above the ground level.

The workdone to accelerate a body from 30 ms^(-1) to 60 ms^(-1) is three times the work done to accelerate it from 10 ms^(-1) to 'v' . The value of 'v' in ms^(-1) is