The weight of anything in any place is
(mass of the thing) x (acceleration of gravity in that place).
-- On Earth, the acceleration of gravity is about 9.807 m/s²
Weight of 19 kg of mass is (19 kg) x (9.807 m/s²) = <em>186.3 newtons</em>
-- On the Moon, the acceleration of gravity is about 1.623 m/s²
Weight of the same 19 kg of mass is (19 kg) x (1.623 m/s²) = <em>30.8 newtons</em>
Answer:
Acceleration = 2.35 m/
Speed = 8.67 m/s
Explanation:
The coefficient of friction , u =0.3
The angle of incline = 30°
The two forces acting on block are weight and friction.
weight along the incline = mg cos60° = = 0.5 mg
Friction along incline = umg cos30° = mg
Friction along incline = 0.26 mg
Net force acting on the weight = (0.5 - 0.26) mg = 0.24 mg
Acceleration = = 0.24 g = 2.35 m/
The height of incline = 8 m
Length of the inclined edge = 16 m
v= 8.67 m/s
A combination, or synthesis reaction, because multiple things are combining into one.
Horizontal velocity is 12.5m/s
Magnitude of actual velocity we find like this:
cos25*Vm=12,5
Vm = 12,5/cos25
Vm= 13.8m/s
vertical velocity is:
Vv = Vm*sin25 = 5.83m/s
Time after ball will stop ascending is:
t=Vv/a = 5,83/9.81 = 0.59s
Finally we calculate traveled distance:
S=t*Vh = 0.59*12,5 = 7.42m
Answer:
no values are given I mean numbers