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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

ACCELERATION DUE TO GRAVITY AND TERMINAL VELOCITY

Choose difficulty:

Beginner

Intermediate

Advanced

What are the dimensions of the drag coefficient?

a: Newton Explanation

Explanation

b: Newton/s Explanation

Explanation

c: kgm/s Explanation

Explanation

d: Dimensionless Explanation

Explanation

Which of the following statements is true regarding acceleration due to gravity?

a: Acceleration due to gravity at the poles is higher compared to that at the equator Explanation

Explanation

b: Acceleration due to gravity is the same for all heights above the earth Explanation

Explanation

c: Acceleration due to gravity is constant at all places on earth Explanation

Explanation

d: None of the above Explanation

Explanation

Two balls of mass m and 2m each are dropped from the top of a building with no significant air resistance. If t1 and t2 are the time required for the masses m and 2m to reach the ground respectively, which of the following statements are true ?

a: t1 = t2 Explanation

Explanation

b: 2t1 = t2 Explanation

Explanation

c: t1 = 2t2 Explanation

Explanation

d: t1 < 2t2 Explanation

Explanation

Which of the following graphs represents an object having constant velocity?

a: A Explanation

Explanation

b: B Explanation

Explanation

c: Both A and B Explanation

Explanation

d: Both C and D Explanation

Explanation

What is the projected area of the following body as it falls vertically downwards in the fluid ?

a: πr2 Explanation

Explanation

b: πR2 Explanation

Explanation

c: π*(R2+r2) Explanation

Explanation

d: (π/2)*(R2+r2) Explanation

Explanation

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