Two crates, one with mass 4.00 kg and the other with mass 6.00 kg, sit on the fr
ID: 2167369 • Letter: T
Question
Two crates, one with mass 4.00 kg and the other with mass 6.00 kg, sit on the frictionless surface of a frozen pond, connected by a light rope (Figure 1) . A woman wearing golf shoes (so she can get traction on the ice) pulls horizontally on the 6.00-kg crate with a force F that gives the crate an acceleration of 3.00m/s^2 .What is the acceleration of the 4.00-kg crate?
Use Newton's second law to find the tension T in the rope that connects the two crates.
Which is larger in magnitude, force T or force F?
Use part (C) and Newton's second law to calculate the magnitude of the force F
Explanation / Answer
(a) As both the crates will move together , acceleration of 4 kg crate is also equal to 2.4 m/s2 (b) T = 4 * 2.4 = 9.6 N (c)F - T = 6 * 2.4 F - 9.6 = 14.4 F = 24 N So F>T
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