If two equal but opposite forces acting on a mass of 1 kg, what is it its veloci
ID: 1599783 • Letter: I
Question
If two equal but opposite forces acting on a mass of 1 kg, what is it its velocity, and acceleration. Add up three following forces F1 (-1, 3) [N], F2(3, 7 (N)), F3 (0, -5)[N] Atwood machine contains two masses of 100g that can move in up and down direction. A small mass added to a one of the masses and the acceleration of the masses is measured to be 0.7 cm/s2. Find the mass that was added to the system. A mass of 5.6 N weights is moving on a flat surface with friction coefficient of .35, under action of the force 7.3 N at the angel 37 degrees relative to the line of motion. Find the acceleration of the mass, and the normal force. A car that weights 700 N is moving in a circular flat ramp of the curvature of radius 55.5 m. If the friction coefficient is equal .76, what is velocity of the car? What is the acceleration that Moon falling on Earth? What constants and parameters of the Moon and Earth system you need to know to solve the problem?Explanation / Answer
3.
Since the two forces acting are equal and opposite , they cancel out to give the net force on the mass as 0
hence Fnet = 0
using newton's second law , Fnet = ma = 0
a = 0
since acceleration is 0 and velocity is constant.
4)
F1 = -1 i + 3 j
F2 = 3i + 7j
F3 = 0i - 5 j
sum of force is given as
Fnet = F1 + F2 + F3 = (-1 i + 3 j) + (3i + 7j) + (0i - 5 j) = 2i + 5j
henc sum = (2,5) N