At the end of the semester, you are loading your gear into a van to go home. In loading the van, you can either lift a 45.0 kg crate straight up (method 1) or push it up a 3.00 m long ramp that is inclined at an angle θ above the horizontal line (method 2). In both methods, the crate is moved at a constant speed, and the vertical distance from the ground to the floor of the van has the same value h. In method 1, no friction is present. In method 2, however, a friction force does 485 J of work on the crate. In applying your non- conservative pushing force to the crate, you do twice as much work in method 2 as in method 1. Find the angle θ.
At the end of the semester, you are loading your gear into a van to go home. In loading the van, you can either lift a 45.0 kg crate straight up (method 1) or push it up a 3.00 m long ramp that is inclined at an angle θ above the horizontal line (method 2). In both methods, the crate is moved at a constant speed, and the vertical distance from the ground to the floor of the van has the same value h. In method 1, no friction is present. In method 2, however, a friction force does 485 J of work on the crate. In applying your non- conservative pushing force to the crate, you do twice as much work in method 2 as in method 1. Find the angle θ.
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
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Problem 31P: In an attempt to escape a desert island, a castaway builds a raft and sets out to sea. The wind...
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At the end of the semester, you are loading your gear into a van to go home. In loading the van, you can
either lift a 45.0 kg crate straight up (method 1) or push it up a 3.00 m long ramp that is inclined at an angle
θ above the horizontal line (method 2). In both methods, the crate is moved at a constant speed, and the
vertical distance from the ground to the floor of the van has the same value h. In method 1, no friction is
present. In method 2, however, a friction force does 485 J of work on the crate. In applying your non-
conservative pushing force to the crate, you do twice as much work in method 2 as in method 1. Find the
angle θ.
either lift a 45.0 kg crate straight up (method 1) or push it up a 3.00 m long ramp that is inclined at an angle
θ above the horizontal line (method 2). In both methods, the crate is moved at a constant speed, and the
vertical distance from the ground to the floor of the van has the same value h. In method 1, no friction is
present. In method 2, however, a friction force does 485 J of work on the crate. In applying your non-
conservative pushing force to the crate, you do twice as much work in method 2 as in method 1. Find the
angle θ.
Determine the stability of a quad on a 20° slope in pull condition. The mass of the quad is 1,000 kg. The
distance between the front and the rear axis is 400.0 cm, and the overall force of gravity for this quad is
located 150.0 cm from the rear axis and 100.0 cm from the ground (that is 100.0 cm perpendicular distance
from the slope). The drawbar is located 60.0 cm from the ground.
distance between the front and the rear axis is 400.0 cm, and the overall force of gravity for this quad is
located 150.0 cm from the rear axis and 100.0 cm from the ground (that is 100.0 cm perpendicular distance
from the slope). The drawbar is located 60.0 cm from the ground.
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