only 12 and 13 velocity vector changing of inertia direction 9 The tangential ac

Question

only 12 and 13

velocity vector changing of inertia direction 9 The tangential acceleration points a. Radially outward b. always points toward the c. points tangential to the d. None of these center of rotation motion directio 10. When a car negotiates a horizontal tum (not a banked tum), the force that supplies the centripetal acceleration is b. the car's weight c, the static friction between the tires and road 11. A system reaches equilibrium when d. None of the above 12, Stress applied on a solid in the elastic re is a. inversely proportional b proportional to the c. directly proportional d. None of the above strain squared.

Explanation / Answer

12 By Hooke's Law Stress Apllied is Directly proportional to strain for more understanding look for stress strain curve.

13.A) changing direction of the constant tangential velocity vector as it always acts perpendicular to the centripetal acceleration as the circular object rotates this direction of tangential velocity keeps on changing.

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