1.1 Resultant force & 1.2 resolution of force

• 
• 
• 
• 

What is the name of force F2?

• Drag

• Thrust

• Buoyancy

• water resistance

Which situation experiences forces in equilibrium?

• a car moving down a hill with increasing velocity

• a durian falls from a tree

• a rocket accelerates upward

• a ship floating above the sea surface

Diagram shows a stationary trolley of mass 1.4 kg on an inclined plane.

What is the magnitude of the force, F ?

• 7.0 N

• 12.7 N

• 16.2 N

• 28.0 N

Diagram shows an aeroplane flying at constant altitude and velocity.

Which Physics concept explains the above situation?

• Resultant force

• Resolution of forces

• Forces in equilibrium

Diagram shows a boy is pulling a 50 kg box along a rough floor.

Which combination of forces F₁ and F₂ will produce an acceleration of 2 m s^-2?

• F1 : 100N F2 : 200N

• F1 : 200N F2 : 400N

• F1 : 300N F2 : 600N

• F1 : 400N F2 : 800N

A constant force of 20 N acts on a block placed on a rough surface as shown in Diagram.

If the friction is 5 N, the block will move with

• constant velocity

• constant acceleration

• increasing acceleration

• decreasing acceleration

Diagram shows a man is pulling a sledge with a rope.

Which of the following will move the sledge forward with the maximum acceleration?

• Small angle , Small force

• Small angle , Big force

• Big angle , Small force

• Big angle , Big force

Which of the following produces the largest acceleration when forces are applied on a block?

• 
• 
• 
• 

Diagram shows Jamal drives a bike at a constant speed of 25 ms^-1. The two forces resisting motion are air friction of 30 N and frictional force of 80 N.

Determine the thrust force of the engine.

• 50 N

• 55 N

• 85 N

• 110 N