Understanding Newton's Laws and Propulsion

A car is moving at a constant speed on a straight road. According to Newton's 1st law, what will happen to the car if no external force is applied?

• The car will gradually slow down and stop.

• The car will continue moving at the same speed.

• The car will speed up.

• The car will change direction.

A rocket engine provides thrust to a spacecraft. Which subsystem does this describe?

• Structural Subsystem

• Guidance Subsystem

• Propulsion Subsystem

• Control Subsystem

If a vehicle's mass is doubled while the force applied remains constant, what happens to the acceleration according to Newton's 2nd law?

• The acceleration doubles.

• The acceleration remains the same.

• The acceleration is halved.

• The acceleration becomes zero.

Which subsystem is responsible for maintaining the structural integrity of a vehicle?

• Propulsion Subsystem

• Structural Subsystem

• Guidance Subsystem

• Control Subsystem

A spacecraft changes its direction using thrusters. Which subsystem is primarily responsible for this action?

• Propulsion Subsystem

• Structural Subsystem

• Guidance Subsystem

• Control Subsystem

According to Newton's 3rd law, if a swimmer pushes against the water, what is the reaction force?

• The water pushes back with equal force in the same direction.

• The water pushes back with equal force in the opposite direction.

• The water does not exert any force.

• The water pushes back with less force in the opposite direction.

Which subsystem would be responsible for ensuring a drone follows a pre-determined flight path?

• Propulsion Subsystem

• Structural Subsystem

• Guidance Subsystem

• Control Subsystem