Answer:
The value is 
Explanation:
From the question we are told that
The mass of the woman is 
The spring constant of the bungee cord is 
Generally the period of the oscillation (i,e time taken to complete on cycle ) is mathematically represented as
=> 
=>
Answer:
1.67m/s
Explanation:
Total Distance to be travelled by a Runner=100m
Time Taken=10*6s
Speed=Distance/Time
=100/10*6=10/6=1.67m/s
Answer:
3600 J
Explanation:
Kinetic energy of an object is the energy posses by an object solely due to its motion.
It can also be defined as the amount of work that can be done when an moving object come to test.
Kinetic energy of an object can be calculated by the equation,
K.E. = ½mv²
Where m = mass, v = velocity
So you get,
K.E. = ½×0.5×(120)² = 3600 J
<u>Answer: </u>
<em>Considering the II law of thermodynamics</em>
<em>From the figure</em>
<em>Out put of energy: </em>
Heat supplied from the source/ reservoir (Q₁) - Heat rejected to the surroundings from the system (Q) = Q₁ - Q₂. Also known as Net work done on the system.
<em>Input of energy: </em>
Amount of heat energy supplied to the system from the source (Q₁ ).
Efficiency (H.E) = η = Output÷ Input
η = (Q₁ - Q₂) ÷ Q₁
OR η = Wnet ÷ Q₁ ; since Wnet = (Q₁ - Q₂)
Answer:
a = 10 m/s²
Explanation:
<u><em>Given:</em></u>
Force = F = 50 N
Mass = m = 5 kg
<u><em>Required:</em></u>
Acceleration = a = ?
<u><em>Formula:</em></u>
F = ma
<u><em>Solution:</em></u>
<em>Rearranging the formula for a</em>
=> a = F/m
=> a = 50/5
=> a = 10 m/s²
