Answer:
58.8Joules
Step-by-step explanation:
The gravitational potential energy = mgh
m is the mass = 2kg
g is the acceleration due to gravity = 9.8 m/s²
h is the height = 3m
Substitute;
GPE = 2 * 9.8 * 3
GPE = 6 * 9.8
GPE = 58.8Joules
Hence the Gravitational Potential Energy of the block is 58.8Joules
This is the overall final answer in fraction and decimal form.
Answer:
a
Step-by-step explanation:
Perpendicular lines have the slopes which product is - 1:
m 1 * m 2 = - 1
First we must transform the first line to the slope-intercept form:
x + 2 y = 4
2 y = - x + 4 /:2
y = - 1/2 x + 2
Therefore: m 1 = - 1/2
( - 1/2 ) * m 2 = - 1
m 2 = ( - 1 ) : ( - 1/2 ) = ( - 1 ) * ( - 2 ) = 2
m = 2 ( this is the slope that we need for our equation )
Then we will charge it to the formula : y = m x + b ( which also passes through the point ( 1. 5 ) ):
5 = 2 * 1 + b
5 = 2 + b
b = 5 - 2
b = 3
Answer:
y = 2 x + 3