What is the process of finding the resultant force?

If two equal forces have a resultant with the same magnitude as either of the forces, what is the angle between the two forces?

The ratio of the load lifted to the effort applied is known as the?

For coplanar concurrent forces to be in equilibrium, what condition should be satisfied?

A rubber ball is dropped from a height of 10 m. If the coefficient of restitution is 1, what is the maximum height the ball will reach after rebounding?

What is the dimensional formula of 'k' in the relation U = ky/(y² + a²), where 'U' represents potential energy, 'y' represents displacement, and 'a' represents maximum displacement?

A ball of mass M undergoes vertical circular motion (involving the effect of gravity). What velocity should be given to the ball at the lowest point of the motion so that it reaches the highest point of the motion? Given: Radius of the circular path is R, and acceleration due to gravity is g.

The couple is formed due to two like, perpendicular and collinear forces of different magnitude.

A wheel of centroidal radius of gyration k is rolling on a horizontal surface with constant velocity. It comes across an obstruction of height h. Because of its rolling speed (v), it just overcomes the obstruction. To determine v, one should use the principle of conservation of

Consider the following statements for two mass systems, m₁ and m₂:

1. The effective mass, m_eff, is the sum of the two masses: m_eff = m₁ + m₂
2. The effective mass, m_eff, is the absolute difference between the two masses: m_eff = |m₁ - m₂|
3. The effective mass, m_eff, is the product of the two masses divided by their sum: m_eff = (m₁ × m₂) / (m₁ + m₂)
4. None of the above three

Which of the following is correct?