There is a given inclined plane with tension indiciated moving up the plane.
#271 The plane above is frictionless and inclined at 30 degrees. The mass is 10kg. If the tension T in the rope is a constant 75 N, and the mass starts from rest, what is the velocity of the mass after 2 seconds?
up vs. down the plane --> I know this must be up the plane
2.5 m/s vs. 5 m/s vs. 7.5 m/s --> I'm torn here
I know the forces moving up the inclined plane must be greater.
The last remaining pieces are:
Fnet = ma & T = mgsin30
I seem to muck this question up when balancing the forces. I believe the tension force and acceleration force must be on the same side of the equation ( T + ma = mgsin30 ) however the solution shows T = mgsin30 + ma
Any clarification would be great!
#271 The plane above is frictionless and inclined at 30 degrees. The mass is 10kg. If the tension T in the rope is a constant 75 N, and the mass starts from rest, what is the velocity of the mass after 2 seconds?
up vs. down the plane --> I know this must be up the plane
2.5 m/s vs. 5 m/s vs. 7.5 m/s --> I'm torn here
I know the forces moving up the inclined plane must be greater.
The last remaining pieces are:
Fnet = ma & T = mgsin30
I seem to muck this question up when balancing the forces. I believe the tension force and acceleration force must be on the same side of the equation ( T + ma = mgsin30 ) however the solution shows T = mgsin30 + ma
Any clarification would be great!
