A 0.47 kg baseball moves to the left (HINT: what sign would velocity have here) at 16 m/s striking a bat. The bat is in contact with the ball for .002 s, and it leaves in the opposite direction at 63 m/s.
What was average force on ball?

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented.b)scientists had not completely finalized their results, which took 30 years.c)cigarettes were cheaply available and media channels were very inefficient.d)cigarette manufacturers were trying hard to bring an alternative into the market

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?