Physics/Math
posted by Technoboi11 .
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?
Respond to this Question
Similar Questions

Physics
You drop a 2 kg textbook to a friend who stands on the ground 10m below the testbook with outstreatched hands 1.5m above the ground. a) how much work W_g is done on the textbook by the gravitational force as it drops to your friend's … 
physics
You drop a 2.3 kg textbook to a friend who stands on the ground 9 m below the textbook with outstretched hands 1.50 m above the ground. What is the speed of the textbook when it reaches the hands? 
physics
You stand at the top of a cliff while your friend stands on the ground below you. You drop a ball from rest and see that it takes 0.90 for the ball to hit the ground below. Your friend then picks up the ball and throws it up to you, … 
physics
A 750.0 N man, carrying a 1.9 kg physics textbook, stands at the center of a frozen pond of radius 9.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome his difficulty, … 
physics
A 750.0 N man, carrying a 1.9 kg physics textbook, stands at the center of a frozen pond of radius 9.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome his difficulty, … 
Physics
You drop a 1.60 kg book to a friend who stands on the ground at distance D = 12.0 m below. If your friend's outstretched hands are at distance d = 1.40 m above the ground (see the figure), (a) how much work Wg does the gravitational … 
math
A my diver jumped from an airplane. He used his watch to time the length of his jump. His height above the ground can be modelled by h= 5(t4)^2+2500, where h is his height above the ground in meters and t is time in seconds from … 
physics
A 25kg bullet traveling shoots into a physics textbook that is 3.5 cm wide, and exits the textbook traveling 40 m/s. Poor defenseless textbook! (A) What was the magnitude of the average deceleration of the bullet while it was penetrating … 
physics
You drop a 1.90 kg book to a friend who stands on the ground at distance D = 11.8 m below with outstretched hands at distance d = 1.42 m above the ground. a)What is the speed of the book when it reaches the hands? 
Physics
QUESTION: In the figure provided, a 2.83 kg textbook is connected by a string to a 0.970 kg cup. The textbook is pushed up a slope of 34.7° with an initial speed of 2.81 m/s. If the coefficients of friction are uk = 0.370 and Îus …