Answer:
None of the above forces on air drag on him is equal to his weight
Explanation:
In the velocity-time graph,the gradient of the curve where it is flatten shows the parachutist reaches the terminal velocity when it reaches terminal velocity which means the parachutist reaches constant velocity or speed,indicating that the acceleration of free fall(g) is zero.And according to the resultant force formula weight - air drag= mass*acceleration. so when accelerate is zero,resultant force is zero. And hence the equation will be like this: weight= air drag
We have negative acceleration when an object projected upwards, while positive acceleration is a free fall.
Answer:<span>222.86 g/inch</span>
The density is count by dividing mass by volume. In this case, the volume is changed from cm3 into cubic inch. First, you need to convert cm3 to cubic inch, which was 1cm3= 0.0610237 cubic inch.
Then the calculation will be 13.6g/0.0610237 cubic inch= 222.864231438
They are toxic and all non metals
Answer:
Force = 0.42 Newton
Explanation:
Given the following data;
Spring constant, k = 2.1
Extension, e = 0.2m
To find the force, we would use the formula below;
Force = spring constant * extension
Force = 2.1 * 0.2
Force = 0.42 Newton