 #1
ssman
 3
 0
New to forum and having major problems with couple problems!
1)Two cars are towing a housing unit to a new location. The sum of the forces vector F A and vector F B exerted on the unit by the horizontal cables is parallel to the line L, and FA = 3200 N. Fa(angle)=48, Fb(angle)=32
Determine FB N.?
using vectors but can't seem to find Fb N...
3)The two masses shown in the figure are each initially 1.80 m above the ground, and the massless frictionless pulley is fixed 4.8 m above the ground. (mA = 1.5 kg and mB = 3.3 kg.) What maximum height does the lighter object reach after the system is released? [Hint: First determine the acceleration of the lighter mass and then its velocity at the moment the heavier one hits the ground. This is its "launch" speed. Assume the mass doesn't hit the pulley. Ignore the mass of the cord.]
5)Francesca dangles her watch from a thin piece of string while the jetliner she is in accelerates for takeoff, which takes about 14 seconds. Estimate the takeoff speed of the aircraft if the string makes an angle of θ = 35° with respect to the vertical.
9)A jet aircraft is accelerating at 4.7 m/s2 as it climbs at an angle of θ = 45° above the horizontal (see figure). What is the total force that the cockpit seat exerts on the 85 kg pilot?
10)A child slides down a slide with a 25° incline, and at the bottom her speed is precisely half what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.
17)A child slides down a slide with a 25° incline, and at the bottom her speed is precisely half what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.

Any kind of help would be helpful, cause I am just stumped right now...
thanks in advance
ssman
1)Two cars are towing a housing unit to a new location. The sum of the forces vector F A and vector F B exerted on the unit by the horizontal cables is parallel to the line L, and FA = 3200 N. Fa(angle)=48, Fb(angle)=32
Determine FB N.?
using vectors but can't seem to find Fb N...
3)The two masses shown in the figure are each initially 1.80 m above the ground, and the massless frictionless pulley is fixed 4.8 m above the ground. (mA = 1.5 kg and mB = 3.3 kg.) What maximum height does the lighter object reach after the system is released? [Hint: First determine the acceleration of the lighter mass and then its velocity at the moment the heavier one hits the ground. This is its "launch" speed. Assume the mass doesn't hit the pulley. Ignore the mass of the cord.]
5)Francesca dangles her watch from a thin piece of string while the jetliner she is in accelerates for takeoff, which takes about 14 seconds. Estimate the takeoff speed of the aircraft if the string makes an angle of θ = 35° with respect to the vertical.
9)A jet aircraft is accelerating at 4.7 m/s2 as it climbs at an angle of θ = 45° above the horizontal (see figure). What is the total force that the cockpit seat exerts on the 85 kg pilot?
10)A child slides down a slide with a 25° incline, and at the bottom her speed is precisely half what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.
17)A child slides down a slide with a 25° incline, and at the bottom her speed is precisely half what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.

Any kind of help would be helpful, cause I am just stumped right now...
thanks in advance
ssman