Which of the following relationships is correct? a. m = sigma F/a b. sigma F = m

Question

Which of the following relationships is correct? a. m = sigma F/a b. sigma F = m/a c. a = m/sigma F d. none of these What is not true about inertia? a. it is e resistance b. it is the resistance to a change in velocity d. it is a kinetic variable e. it is a kinematic variable Andy jumps to the hoop to make his usual dunk, and then hangs hoop for a split second before letting go. During the time he hangs his spine is under a compressive load a. true b. false The force acting on a body per unit of contact area is a. mass b. inertia c pressure d weight e. torque Which variable is best representation of how strong one is at a given joint (mechanical strength? a. maximum force generated in the muscle b. maximal torque generated about the joint center c. the amount of fast twitch fiber in the muscle that cross the joint d. the distance from the joint center to the tendon A force which tends to cause a portion of a body to slide with respect to another a. shear b. compressive c. tensile d. rotary

Explanation / Answer

32)

Using second law of motion

net force = m * a

hence , option a is correct

24)for the inertia

Using first law of motion

b) it is the resistance to a change in velocity

23)

False , in the hang time , the spine start to expand and it is under expansion

21)

Pressure = force/area

hence , the correct option is c) pressure

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please post rest in a seperate question

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