In physics, resistive force is a force, or the vector sum of numerous forces, whose direction is opposite to the motion of a body, and may refer to: Friction, during sliding and/or rolling. Drag (physics), during movement through a fluid (see fluid dynamics)

What is a resistive force give two examples?

Resistive Forces These include: Friction which is a force that prevents, or tries to prevent, the slipping or sliding of two surfaces in contact. Air Resistance which acts in the opposite direction to the motion. Worked Example 2.

What is the formula of resistive force?

m d v d t = m g + ( − F R ) or m d v d t = m g − F R , where represents this resistive force. Note that down is assumed to be the positive direction. The resistive force is typically proportional to the body's velocity, v, or the square of its velocity, .