people who do chin-ups raise their chin just over a bar, supporting themselves only by their arms. typically, the body below the arms is raised by
about 30 cm in a time of 1 s, starting from rest. assume that the entire body of a 680 n person who is chinning is raised this distance and that 0.5 s
is spent accelerating upward and 0.5s accelerating downward, uniformly in both cases. find the force his arms must exert on him during the
accelerating part of the chin-up.
762 n
742 n
705 n
700 n

Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

Which component is used to measure the current in a circuit? oa. switch ob. resistor oc. ammeter the answer is c. for y’all plato people