Exam 4: Newtons Laws

Figure 4.10 The figure shows a standard man working on concentration curls. A standard man is defined having body mass 70.0 kg, and mass of each arm 6.5% of the total body mass. -The standard man from Fig. 4.10 intends to exercise with a 4.0 kg dumbbell. When he is holding the weight vertically down, what are the magnitudes of tension in the shoulder and of the downward force pulling the fist?

Figure 4.1 ​ -When a scale is pulled by two identical forces, 10 N each, as in Fig. 4.1, what will the scale read?

A student in an elevator is checking Newton's laws using a scale. The scale is showing a reading larger than the student's actual weight. Which one of these statements explains this phenomenon?

The incline angle of a banked road is selected on the basis of an estimate of maximum mass of a vehicle that would be driven on the road.

Terminal velocity is the velocity with which a body falls through the air when the drag force equals all other forces acting on that body.

If an object is falling freely, what is the gravitational force equal to?

What are the similarity and the difference between static and dynamic equilibrium?