Answer:
Explanation:
This problem bothers on the energy stored in a spring in relation to conservation of energy
Given data
Mass of block m =200g
To kg= 200/1000= 0.2kg
Spring constant k = 1.4kN/m
=1400N/m
Compression x= 10cm
In meter x=10/100 = 0.1m
Using energy considerations or energy conservation principles
The potential energy stored in the spring equals the kinetic energy with which the block move away from the spring
Potential Energy stored in spring
P.E=1/2kx^2
Kinetic energy of the block
K.E =1/mv^2
Where v = velocity of the block
K.E=P.E (energy consideration)
1/2kx^2=1/mv^2
Kx^2= mv^2
Solving for v we have
v^2= (kx^2)/m
v^2= (1400*0.1^2)/0.2
v^2= (14)/0.2
v^2= 70
v= √70
v= 8.36m/s
a. Distance moved if the ramp exerts no force on the block
Is
S= v^2/2gsinθ
Assuming g= 9. 81m/s^2
S= (8.36)^2/2*9.81*sin60
S= 69.88/19.62*0.866
S= 69.88/16.99
S= 4.11m
To find <em>Speed </em>you divide distance by time.
Reasoning:
Displacement is the change in an object's position from the origin.
To find Acceleration you use the equation a=v^2/r
To find Velocity you divide the distance by the time it takes to travel that distance, then you add your direction to it.
<em>To find speed you use distance is over time</em>
I saw an example of yahoo saying that 114,000,000= 0.114, so ima take a guess and say that the way in expressing 146,000,000 in gigadollars would be 0.146. I'm sorry if I am wrong. But if it is right give me a thanks so I could know if I was right or not.
50.0 becuz it is rounded to 0 which gives the answer a right angle for 223.323 which is N x S
