Posted by **Technoboi11** on Wednesday, March 7, 2007 at 1:08am.

You drop a 1.8 kg textbook to a friend who stands on the ground 9 m below the textbook with outstretched hands 1.50 m above the ground.

(a) What is the speed of the textbook when it reaches the hands?

m/s

(b) If we substituted a second textbook with twice the mass, what would its speed be?

m/s

(c) If, instead, the textbook were thrown down, would the answer to (a) increase, decrease, or remain the same?

I will be happy to critique your thinking on this.

What did Galelo prove at Pisa?

## Answer this Question

## Related Questions

- physics - You drop a 2.3 kg textbook to a friend who stands on the ground 9 m ...
- Physics - You drop a 2 kg textbook to a friend who stands on the ground 10m ...
- physics - You drop a 1.90 kg book to a friend who stands on the ground at ...
- Physics - You drop a 1.60 kg book to a friend who stands on the ground at ...
- physics - You stand at the top of a cliff while your friend stands on the ground...
- Physics Correction - You drop a ball from a window on an upper floor of a ...
- Physics - You are at standing at a window in the University tower that is 42.0 ...
- math - A my diver jumped from an airplane. He used his watch to time the length ...
- physics - A 750.0 N man, carrying a 1.9 kg physics textbook, stands at the ...
- physics - A 750.0 N man, carrying a 1.9 kg physics textbook, stands at the ...

More Related Questions