What is the difference between friction force and resistive force? Select one: a. Friction force happens on object moving in medium (gas or liquid), resistive force happens on an object moving in air b. Friction force happens on object moving in air, resistive force happens on an object moving in a medium (gas or liquid) c. Friction force happens when object is moving fast, resistive force happens when object is moving slow d. Friction force happens when object is moving, resistive force happens when object is not moving What is terminal speed? Select one: a. The speed of an object before reaching the ground b. The speed achieved by the object when the resistive force is equal to the gravitational force c. The speed achieved by the object when the resistive force is smaller than the gravitational force d. The speed of an object moving in a liquid or gas

What is the difference between friction force and resistive force? Select one: a. Friction force happens on object moving in medium (gas or liquid), resistive force happens on an object moving in air b. Friction force happens on object moving in air, resistive force happens on an object moving in a medium (gas or liquid) c. Friction force happens when object is moving fast, resistive force happens when object is moving slow d. Friction force happens when object is moving, resistive force happens when object is not moving What is terminal speed? Select one: a. The speed of an object before reaching the ground b. The speed achieved by the object when the resistive force is equal to the gravitational force c. The speed achieved by the object when the resistive force is smaller than the gravitational force d. The speed of an object moving in a liquid or gas