BBC4 年
How to show the difference between force and pressure
When a force is exerted on an object it can change the object's speed ... STEP 2: Stand on a sheet of paper and use a pen and a ruler to draw a rectangle around the trainer.
BBC3 年
How to show the difference between force and pressure
When a force is exerted on an object it can change the object's speed ... STEP 2: Stand on a sheet of paper and use a pen and a ruler to draw a rectangle around the trainer.