Answer:
Acceleration=
Speed=0.67 m/s
Explanation:
We are given that
Horizontal force=F=20 N
Mass of box=m=40 kg
We know that
Acceleration=
Using the formula
Acceleration of box=
The acceleration of the box=
Initial velocity=u=0
Force=F=30 N
Distance=s=0.3 m
Substitute the values
Hence, the speed of the box after it has been pulled a distance of 0.3 m=0.67 m/s
Answer:
the mechanical advantage David had when using the pulley is 2.
Explanation:
Given;
load moved by David, L = 350 N
effort applied by David, E = 175 N
The mechanical advantage David had when using the pulley is calculated as;
Therefore, the mechanical advantage David had when using the pulley is 2.
So Force=Mass*Acceleration
You have a mass of .175 kg or 175 grams
Force= (175 g)(50)= 8750 N of force
Answer:
It made landfall.
Explanation:
On land there is more friction than in open water, so it slowed down the hurricane.
