Atoy of mass 0.155 kg is undergoing simple harmonic motion (shm) on the end of a horizontal spring with force constant 305 n/m . when the object is a distance 1.25×10−2 m from its equilibrium position, it is observed to have a speed of 0.305 m/s . part a what is the total energy of the object at any point of its motion

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m.the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

In physics the desire of an object to keep doing what it is doing is termed?