Resultant Forces (GCSE Physics)

A horizontal towbar pulls a disabled car with 1200 N forward. The road applies 1200 N backward. If the towbar force suddenly drops to 900 N, what is the resultant and direction?

A book rests on a table with gravitational force 12 N downward. A student pushes down on the book adding another 3 N downward. The table reacts with normal force. What is the normal force?

A 50 N pull at 45° above the horizontal has vertical component = 35.4 N (approx). Which expression gives the horizontal component?

A throwing athlete applies 800 N for 0.20 s to a shot. What is the impulse delivered?

A projectile experiences weight 98 N downward and air resistance 18 N upward at a moment. What is the resultant vertical force?

An aeroplane has thrust 14000 N forward, friction 9500 N backward and air resistance 4500 N backward. What is the resultant horizontal force?

A cyclist applies a forward force of 200 N. Air resistance and friction total 200 N backward. What is the cyclist’s acceleration?

Two perpendicular forces of 6 N (east) and 8 N (north) act on a point. What is the magnitude of the resultant force?

A box has three forces in the plane: 10 N right, 6 N up, and 6 N left. What is the resultant force vector?

A student applies a 10 N push at the centre of a uniform disk causing no rotation and the disk remains at constant speed. What is the resultant horizontal force?

A block on a slope experiences gravity component 40 N down the slope and friction 25 N up the slope. What is the resultant along the slope and will the block accelerate up or down?