# MAGNETIC WHITEBOARD PRESENTATION

Neddy Amendra

Created on October 10, 2023

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## Transcript

##### Neddy Amendra

### Forces in motion

3. practise question

4. practise question

2. mass and weight

2. Forces and equillibrium

1. Forces and acceleration

##### Resultant force is the vector sum of all the forces

##### A newton is the force required to accelerate a mass of 1kg by 1ms-2 in the direction of the force

##### force equals mass times acceleration.

### Forces and acceleration

##### Mass of an object is the amount of matter in it . Weight is a force and is measured in Newtons.

### Mass weight and centre of mass

##### next question

##### f=mam=750kgt=30su=0ms-1a=f over m. 1.5e3 /750= 2ms-2s=ut+1/2ate2s=0(30)+(1/2 *2 *30e2) = 900.

A spacecraft is at rest in deep space and has a mass of 750 kg . The spacecraft fires its thrusters for 30 seconds producing a constant force of 1.5e3. Calculate the distance travelled in 30 seconds