Newton's Laws of Motion Quiz

What is the initial condition of the particle in the given problem?

• The particle is accelerating upwards.

• The particle is moving with a constant speed.

• The particle is in free fall.

• The particle is at rest on a horizontal plane.

Which force acts downwards on the particle due to gravity?

• Resistive force

• Weight

• Normal reaction

• Applied force

What is the magnitude of the resistive force acting on the particle?

• 2 Newtons

• 4 Newtons

• 3 Newtons

• 5 Newtons

How do you calculate the resultant force acting on the particle horizontally?

• Add the weight and normal reaction.

• Multiply the mass by the acceleration.

• Subtract the resistive force from the applied force.

• Add the applied force and resistive force.

What is the acceleration of the particle?

• 4 m/s²

• 2 m/s²

• 0.5 m/s²

• 1 m/s²

Why is the normal reaction force not considered in the horizontal force resolution?

• It is equal to the weight of the particle.

• It is negligible compared to other forces.

• It acts in the same direction as the motion.

• It acts at right angles to the direction of motion.

What is the purpose of resolving forces vertically in this problem?

• To find the acceleration of the particle.

• To determine the speed of the particle.

• To calculate the normal reaction force.

• To find the resistive force.

Which equation is used to find the speed of the particle after 2 seconds?

• F = ma

• v² = u² + 2as

• s = ut + 0.5at²

• v = u + at

What is the initial velocity of the particle?

• 2 m/s

• 0.5 m/s

• 0 m/s

• 1 m/s

What is the final speed of the particle after 2 seconds?

• 1.5 m/s

• 0.5 m/s

• 1 m/s

• 2 m/s