Question Library

A car travelling at a uniform speed of 120km/hr passes two stations in 4minutes. Calculate the distance between the two stations.

The figure shows a uniform metre rule of weight 100 N balanced by a knife edge at the 10 cm mark and a cord attached at the 85 cm mark. What is the tension in the string?

From the above figure, a uniform meter rule is suspended by two cords from a height. Calculate T?

At what angle to the horizontal must the nozzle of a machine gun be kept when firing to obtain maximum horizontal range of the bullets?

A body is moving initially at 4m/s. If it's impulse after accelerating at 5m/s\(^2\) for 2s is 60Kgms\(^{-1}\). What is its mass?

Using the oscillating simple pendulum above, the maximum kinetic energy is obtained at

If the length of a simple pendulum is 120cm, calculate its frequency [\(\pi\) = \(\frac{22}{7}\) g = 10ms\(^{-2}\)]

A student found out from a simple pendulum experiment that 20 oscillations were completed in 38 seconds.

The angular speed of an object describes a circle of radius 4m with linear constant speed of 10m/s is

Which of the following will reduce the frequency of oscillation of a simple pendulum?

A Force 18 N pulls a 40 kg mass on a horizontal floor at 0.3 ms\(^{-2}\). Find the coefficient of friction.

The tangential force acting on an object that opposes it from sliding freely on the adjacent surface is called

A block with an initial speed of 10 m/s slides on a horizontal surface and comes to rest after traveling a distance of 25 m. What is the coefficient of kinetic friction between the block and the surface? (Take g = 9.8 m/s\(^2\)).

The acceleration of the body given above ( upthrust = 10N)

3a. What is surface tension? Explain the phenomenon in terms of intermolecular forces. b. Describe a simple experiment to demonstrate the surface tension of a liquid. c. State three examples to illustrate the effects of surface tension. d. Why does water wet a clean glass surface, whereas mercury does not? e. State two methods by which the surface tension of a liquid may be reduced.