A10-kilogram mass is suspended from the end of a beam that is 1.2 meters long. the beam is attached to a wall. find the magnitude and direction (clockwise or counterclockwise) of the resulting torque at point b.

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.

The power exerted by a muscle is the product of the force exerted and the velocity of contraction. the area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?