Anail is hit with a hammer with a force of 10 newtons. the nail moves into the wood with a force

greater than 10 n
less than 10n
equal to 10 n

Which of the following is a true statement about the acceleration ~a of the pendulum bob ~a is equal to the acceleration due to gravity. ~a is perpendicular to the bob’s trajectory. ~a is equal to the instantaneous rate of change in velocity. ~a is tangent to the bob’s trajectory.