Joey lifts a heavy backpack off the ground. As he lifts the backpack, he keeps his legs straight and uses his biceps and back muscles to lift. In your analysis of Joey’s form, you conclude he needs to use his (1 point)
arm muscles and keep his head up.
back muscles and keep his feet together.
chest muscles and bend more at the hips.
leg muscles and keep his back straight.

Question

Joey lifts a heavy backpack off the ground. As he lifts the backpack, he keeps his legs straight and uses his biceps and back muscles to lift. In your analysis of Joey’s form, you conclude he needs to use his  (1 point)
arm muscles and keep his head up.
back muscles and keep his feet together.
chest muscles and bend more at the hips.
leg muscles and keep his back straight.

amorfide · Answer

This isn't math.

leg muscles and keep his back straight