A variable force P=49t N is applied as shown on a particle of mass m=20 Kg which rests on a rough plane. The rough plane has a static and kinetic friction coefficients of 0.5 and 0.25, respectively. time to start motion (sec) Oa. 10 Ob. 2.75 Oc. 4.4 Od. 5.5 Oe. 16.5 velocity at t=4 s (m/s) velocity at t=10 s (m/s) Friction at t=10 S (N) Oa. 29.4 Ob. 58.8 Oc. 88.2 Od. 117.6 Oe. 14.7 14

A variable force P=49t N is applied as shown on a particle of mass m=20 Kg which rests on a rough plane. The rough plane has a static and kinetic friction coefficients of 0.5 and 0.25, respectively. time to start motion (sec) Oa. 10 Ob. 2.75 Oc. 4.4 Od. 5.5 Oe. 16.5 velocity at t=4 s (m/s) velocity at t=10 s (m/s) Friction at t=10 S (N) Oa. 29.4 Ob. 58.8 Oc. 88.2 Od. 117.6 Oe. 14.7 14

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Free undamped vibrations

Whenever an object/system displaces in either side of its equilibrium position with the help of an external/internal means, then the object/system moves regularly or randomly on both sides of its equilibrium position. This motion is called vibration. Generally, there are three types of vibration: longitudinal vibration, transverse vibration, and torsional vibration.

Question

A variable force P=49t N is applied as shown on a particle of mass m=20 Kg which rests on a
rough plane. The rough plane has a static and kinetic friction coefficients of 0.5 and 0.25,
respectively.
time to start motion (sec)
Oa. 10
Ob. 2.75
Oc. 4.4
Od. 5.5
Oe. 16.5
velocity at t=4 s (m/s)
velocity at t=10 s (m/s)
Friction at t=10 S (N)
Oa. 29.4
Ob. 58.8
Oc. 88.2
Od. 117.6
Oe. 14.7
14

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A variable force P=49t N is applied as shown on a particle of mass m=26 Kg which rests on a rough plane. The rough plane has a static and kinetic friction coefficients of 0.5 and 0.25, respectively. time to start motion (sec) а. 13 b. 3.575 c. 5.72 d. 7.15 e. 21.45 velocity at t=5.2 s (m/s) velocity at t=13 s (m/s) Friction at t=13 S (N) а. 38.22 b. 76.44 c. 114.66 d. 152.88 е. 19.11 W.