m = 0.5kg, T = 0.2 s, A= 5cm potential energy at t = T/4 = ?

A liquid film is formed in a loop of area 0.05 m 2. Increase in its potential energy will be ( T = 0.2 N/m )

an object of mass 0.5 kg is executing simple harmonic motion. It amplitude is 5 cm and time period (T) is 0.2 s. What will be the potential energy of the object at an instant t=(T)/(4)s starting from mean position. Assume that the initial phase of the oscillation is zero.

A metal bar is moving with a velocity of v = 5 cm s^(-1) over a U-shaped conductor. At t = 0 , the external magnetic field is 0.1 T direction out of the page and is increasing at a rate of 0.2 T s^(-1) . Tale l = 5cm , and at t = 0, x = 5 cm . The current flowing in the circuit is

A metal bar is moving with a velocity of v = 5 cm s^(-1) over a U-shaped conductor. At t = 0 , the external magnetic field is 0.1 T direction out of the page and is increasing at a rate of 0.2 T s^(-1) . Tale l = 5cm , and at t = 0, x = 5 cm . The emf induced in the circuit is

Let the disk of mass 2.5kg start from rest at time t = 0 and also let the tension in the massless cord be 6.0 N and the angular acceleration of the disk be -24rad//s^(2) . What is its rotational kinetic energy K at t = 2.5 s?

The equation of a wave is given by y=10sin((2pi)/45t+alpha) If the displacement is 5 cm at t = 0, then the total phase at t = 7.5 s is

Power supplied to a mass 2 kg varies with time as P = (3t^(2))/(2) watt. Here t is in second . If velocity of partical at t = 0 is v = 0 , the velocity of partical at time t = 2s will be:

The distance travelled by a particle in time t is given by s = (2.5 t^(2)) m. Find (a) the average speed of the partion during time 0 to 0.5 s and (b) the instantaneous speed at t = 5.0s.

Fig. shows the position-time graph of a particle of mass 4 kg. What is the (i) force acting on the particle for t lt 0, t lt 4 s, 0 lt t lt 4 s ? (ii) impulse at t = 0 and t = 4 s? Assume that the motion is one dimensional.