Calculate the workdone to stretch an elastic string by 40cm if a force of 10n produces an extension of 4cm in it

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?

Asystematic approach to problem solving is called a (an)

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?