Question

Use Newton’s second law of motion to determine the unknown values for the following objects in motion. Calculate the values, and round your answer to the correct number of significant digits. If needed, use the conversion factor 1 lb = .454 kg.


1. Baseball data: 0.142 kg, _____ N, 388 m/s²


2.Football player data: 0.426 m/s² , _____ kg, 28.39 N of force pushing the player over the goal line, and 1.98 N of force by defender pushing in the opposite direction.


3.Wagon data: 77.6 lbs, 128 N, _____ m/s²

Answer 1

Answer:

according to newtons second law of motion

force=MASS×ACCELIRATION

1.F=m×a

28.39N=m×0.426

m=0.426×28.39

m=12.09