1. Mass of the object 1 is 2 kg, the mass of the object 2 is 4 kg, acceleration of gravity is 10 m/s2, the magnitude of the force F is 12 Newton. Determine the magnitude and direction of the objects’ acceleration.
Known :
m1 = 2 kg, m2 = 4 kg, g = 10 m/s2, F = 12 Newton
Wanted : a
Solution :
ΣF = m a
F = (m1 + m2) a
12 = (2 + 4) a
12 = 6 a
a = 12 / 6
a = 2 m/s2
Magnitude of the acceleration is 2 m/s2, direction of the acceleration = direction of the net force = rightward.
[irp]
2. Mass of the object 1 is 2 kg, mass of the object 2 is 4 kg, acceleration of gravity is 10 m/s2, magnitude of the force F is 24 N. Determine the magnitude and direction of the acceleration.
Known :
m1 = 2 kg, m2 = 4 kg, g = 10 m/s2, F = 24 Newton
Wanted: acceleration (a)
Solution :
ΣF = m a
F = (m1 + m2) a
24 = (2 + 4) a
24 = 6 a
a = 24 / 6
a = 4 m/s2
The direction of the acceleration = the direction of the net force = rightward.
[irp]
[wpdm_package id=’474′]
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