Physics, 13.08.2019 17:10 mackdoolittle1
Robots with telescoping arms are sometimes used to perform tasks (e. g., welding or placing screws) where access may be difficult for other robotic types. during a test run, a robot arm is programmed to extend according to the relationship r = 3 + 0.5 cos(4θ) and the arm rotates according to the relationship θ = −(π/4)t 2 + πt where r is in feet, θ is in radians, and t is in seconds. determine the velocity and acceleration of the robot tip a at t = 3 s
Answers: 2
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A6.0-kilogram cart initially traveling at 4.0 meters per second east accelerates uniformly at 0.50 meter per second squared east for 3.0 seconds. what is the speed of the cart at the end of this 3.0 second interval? (1) 1.5 m/s (3) 3.0 m/s (2) 5.5 m/s (4) 7.0 m/s
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Robots with telescoping arms are sometimes used to perform tasks (e. g., welding or placing screws)...
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