Question

A small sphere is suspended by a string from the ceiling of a car. If the car begins to move with a constant acceleration a, tension generated in the string is:

• A. mg
• B. $m\sqrt{g^{2} - a^{2}}$
• C. $m\sqrt{g^{2} + a^{2}}$
• D. $m\sqrt{g^{2} + 2a^{2}}$

Answer 1

Answer: (C)

$m\sqrt{g^{2} + a^{2}}$

Answer 2

T² = m²$(a_{0}^{2} + g^{2})$ or $\begin{matrix} T = m\sqrt{a_{0}^{2} + g^{2}} \end{matrix}$