yesJohn78 said:so am I right in my calculations
α= sin^-1 0.6/5 = sin^-1 0.12
α = 6.9 degrees
T cos α = m*g
T= m*g/cosα
No, the cosine of 6.9 degrees is not 0.121869343T=4*9.8/0.121869343
yes, so T = ?John78 said:cos 6.9 = 0.992757341
Am I right?
Tension is a force that is exerted on an object by a string, rope, or other material. It is calculated by dividing the weight of the object by the length of the string or rope that is supporting it.
Tension is directly proportional to the weight of the object and inversely proportional to the length of the string or rope. This means that as the weight of the object increases, the tension increases, and as the length of the string or rope increases, the tension decreases.
The formula for calculating tension is T = (m * g) / L, where T is tension, m is the mass of the object, g is the acceleration due to gravity (9.8 m/s^2), and L is the length of the string or rope.
To calculate the tension in a 5m string attached to a 4kg bob, plug in the values into the formula: T = (4kg * 9.8 m/s^2) / 5m = 7.84 N. This means that the tension in the string is 7.84 Newtons.
Tension is typically measured in units of force, such as Newtons (N) or pounds (lbs). It can also be measured in units of mass multiplied by acceleration, such as kilograms (kg) multiplied by meters per second squared (m/s^2).