## Forces and Newton's Laws

### 1

What is the weight of a person on the Earth?

### 2

What is the weight of a person on the moon where

### 3

What is the unbalanced force acting a on a rocket if its weight is and the thrust of its engines is ?

### 4

The cyclist and bicycle have a combined mass of and accelerate forwards at . Calculate the size of the unbalanced force producing this acceleration.

### 5

Two forces act on a parachutist during a drop. One force is the weight of the parachutist. The other force is the upwards pull from the parachute harness on the parachutist. The parachutist has a mass of . What is the acceleration of the parachutist?

### 6

A shopping trolley and its contents have a mass of . The trolley is pushed with a force . The friction force acting on the trolley is . The acceleration of the trolley is in the forward direction. What is the size of the unbalanced force acting on the trolley?

### 7

A shopping trolley and its contents have a mass of . The trolley is pushed with a force . The friction force acting on the trolley is . The acceleration of the trolley is in the forward direction. What is the size of force ?

### 8

A force and a force act on a crate at right angles, as shown in the diagram.

What is the magnitude of the resultant force?

### 9

A force and a force act on a crate at right angles, as shown in the diagram.

What is the direction of the resultant force?