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