1. In the Figure ,m1=2.00kgm1=2.00kg and m2=4.00kg.m2=4.00kg. Consider the pulley to be frictionless. (a) If m2m2 is released, what will its acceleration be? (b) What is the tension in the string? m1 m2

help pls asap not in scientific notation pls

Hi I needed help with this.  An athlete with a mass of 53.5 kg is doing pushups as shown in the figure below. The value for rW⊥ is 1.00 m and the value for rR⊥ is 1.60 m. (a) Assuming she moves upward at a constant speed, determine the force she must exert on the floor with each hand to do a push-up.(b) The triceps muscle in the back of her upper arm with an effective lever arm of rT⊥ = 1.70 cm, as shown in the figure below, and she exerts force on the floor a horizontal distance of r 'R⊥ = 2.05 cm from the elbow joint.   Determine the force in the triceps muscle.In order to appreciate the strength of the triceps, determine the ratio of the force in the tricep muscle to her weight (in decimal form).   FT/W = ?

ved 161 A single cable is wrapped from the center of pulley A, around pulley B, and around pulley A. This cable is pulled downward at 2 m/s. At what speed does pulley B move upward? V = 1 S L= take a time derivitive 0-2 VAB+ VAC dB C WEIGHT 2 m/s de