Answer:
c. 10
Step-by-step explanation:
Pythagoras theorem is used since it's a right angle triangle
26²-24²=a²
676-576=a²
√100=√a²
a=10
490J
Step-by-step explanation:
Given parameters:
Mass of rock = 5kg
Height of hill = 10m
Unknown:
Potential energy at the hilltop = ?
Solution:
Potential energy is the energy at rest of a body. it is given as:
P.E = mgh
m is the mass of the body
g is the acceleration due to gravity = 9.8m/s²
h is the height of the hilltop
P.E = 5 x 10 x 9.8 = 490J
Learn more:
Potential energy brainly.com/question/10770261
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Answer:
Step-by-step explanation:
are there options?
Answer:
65
Step-by-step explanation:
This question can be solved using the Pythagorean Theorem, which is 
where a and b are legs and c is the hypotenuse. The equation used to solve for one leg is 
. So, plug in the given measurements and solve. This turns into 
, which equals 65.
