A piece of rope is pulled by two people in a tug-of-war. each exerts a 400-n force. what is the tension in the rope?
2 answers:
Answer:
400 N
Explanation:
According to Newton's third law of motion: For every action, there is an equal and opposite reaction. The tension in the rope occurs due to the amount of the force by which the rope is pulled.
There is zero acceleration in the rope as it is being pulled from opposite ends with equal force.
consider one half of the rope:
Thus, tension in the rope = 400 N
You might be interested in
The ideal mechanical advantage will be 8.017. The ideal mechanical advantage value may be grater than the actual value of mechanical advantage.
<h3>What is mechanical advantage ?</h3>
Mechanical advantage is a measure of the ratio of output force to input force in a system, it is used to obtained efficiency of forces in levers and pulley.
The ideal mechanical advantage is found as;
The ideal mechanical advantage will be 8.017.
To learn more about the mechanical advantage, refer to the link;
#SPJ1
Answer:
a) 10.54 sec
b) 284.58 m
c) 29.406 m/s
d) 39.92 m/s
Explanation:
Given data:
velocity of spacecraft = 27.0 m/s
rate of free fall acceleration is 2.79 m/s^2
distance of moving aircraft from mooon surface is 155 m
a. from kinematic eqaution of motion we have
where y = 155 m
Vi = 0 as this relation is for vertical motion, so the 27.0 m/s is not included
and a = 2.79 m/s^2.
Solving for t we get
t = 10.54 sec
b.
we know that
c. from the kinematic formula
v = u + at
v = 29.4066 m/a
d.
v = 39.92 m/s