Posted by Rachel on Wednesday, February 27, 2013 at 8:46pm.
In the figure below, a small block of mass m = 0.034 kg can slide along the frictionless loop-the-loop, with loop radius 8 cm. The block is released from rest at point P, at height h = 7R above the bottom of the loop. (For all parts, answer using g for the acceleration due to gravity, and R and m as appropriate.)
(a) How much work does the gravitational force do on the block as the block travels from point P to point Q?
J
(b) How much work does the gravitational force do on the block as the block travels from point P to the top of the loop?
J
(c) If the gravitational potential energy of the block-Earth system is taken to be zero at the bottom of the loop, what is the potential energy when the block is at point P?
J
(d) What is the potential energy when the block is at point Q?
J
(e) What is the potential energy when the block is at the top of the loop?
J
(f) If, instead of being released, the block is given some initial speed downward along the track, do the answers to (a) through (e) increase, decrease, or remain the same?
increase
decrease
remain the same
No one has answered this question yet.
Answer this Question
Related Questions
Physics - drwls? - A small block of mass m = 4.0 kg can slide along the ...
physics - A massless spring of constant k =60.9 N/m is fixed on the left side of...
Physics URGENT!!! - : A massless spring of constant k =84.8 N/m is fixed on the ...
Physics URGENT!!! - A massless spring of constant k =84.8 N/m is fixed on the ...
Physics- Elena please help! - A massless spring of constant k =84.8 N/m is fixed...
physics - A small block of mass m = 1.1 kg slides, without friction, along the ...
physics - A small block of mass m = 1.1 kg slides, without friction, along the ...
Physics - URGENT - A small block of mass 5 kg initially rests on a track at the ...
Physics - A massless spring of constant k = 91.0 N/m is fixed on the left side ...
Physics - I THINK SOMEONE HAS THIS SAME QUETION! A massless spring of constant k...
For Further Reading
