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27 Nov 2019

-A crate of mass m (=30 kg) is placed at rest on a (frictionless)inclined plane, which has an angle (= 60o) above horizontal.

a)How long would it take the crate to slide 8 m down theincline?

b)If the crate were kept from sliding by a rope pulling parallel tothe incline, what would the size of the tension be?

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Jean Keeling
Jean KeelingLv2
18 Jan 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

-A crate of mass m (=30 kg) is placed at rest on a(frictionless) inclined plane, which has an angle (= 60o) abovehorizontal.

a)How long would it take the crate to slide 8 m down theincline?

b)If the crate were kept from sliding by a rope pulling parallel tothe incline, what would the size of the tension be?


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(a) If the mass of a jet is 1.82 multiplied by 105 kg, what forceis needed for takeoff?


-Two crewmen pull a boat through a lock, as shown in Figure 5-25.One crewman pulls with a force of F1 = 115 N at an angle of ? = 38°relative to the forward direction of the raft. The second crewman,on the opposite side of the lock, pulls at an angle of 45°. Withwhat force F2 should the second crewman pull so that the net forceof the two crewmen is in the forward direction?

A crate of mass m1 on a frictionless inclined plane is attached to another crate of mass m2 by a massless rope. The rope passes over an ideal pulley so the mass m2 is suspended in air. The plane is inclined at an angle ? = 36.9°. Use conservation of energy to find how fast crate m2 is moving after m1 has traveled a distance of 1.4 m along the incline, starting from rest. The mass of m1 is 13.0 kg and the mass of m2 is 23.4 kg.

A stop block, s, prevents a crate from sliding down a theta_1 =31.0^\circ incline. A tensile force F=(F_0 t)~{\rm N} acts on thecrate parallel to the incline, where F_1 = 350 N/s. If thecoefficients of static and kinetic friction between the crate andthe incline are mu_s1 = 0.280 and mu_k1 = 0.235, respectively, andthe crate has a mass of 48.8 kg, how long will it take until thecrate reaches a velocity of 3.34 m/s as it moves up theincline?


can you give me the final answer

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