Sketch a graph of velocity versus time corresponding to the graph of displacement versus time given in the figure below. Identify the time, or times,
at which the instantaneous velocity is greatest, and the time, or times, at which
it is negative.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?

What is the major limitation to the light microscope?