E Learning Task No. 4: Determine if the given situation sous parental or lane ic energy. Calculate using the formula given below. P.E. - mass x acceleration due to gravity x height P.E. = mgh- Nxh 1 Newton (N) = 1 kg x 1 m/sor 1 kgm/s acceleration due to gravity = 9.8 ms or 10 KE = 1/2 my 1. You throw a ball with a mass of 2.1 kg. The ball leaves your hand at 30m/s energy. Calculate it. The ball has 2. There is a bell at the top of a tower that is 50 m high. The bell weighs 190N. The bell has energy. Calculate it. 3. At what height is an object that has a mass of 56 kg if its gravitational poten- tial energy is 9800 J? 4. There is a blender at the cabinet that is 5 m high. THe blender weighs 50N. The blender has energy. Calculate it. PIVOT 4A CALABARZON 20
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Problem 1:
The ball has kinetic energy.
Given:
m = 2.1 kg
v = 30 m/s
Required:
KE
Equation:
Solution:
Answer:
945 J
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Problem 2:
The bell has potential energy.
Given:
w = 190 N
h = 50 m
Required:
PE
Equation:
PE = wh
Solution:
PE = wh
PE = (190 N)(50 m)
Answer:
9,500 J
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Problem 3:
Given:
PE = 9,800 J
g = 9.8 m/s²
m = 56 kg
Required:
h
Equation:
Solution:
Answer:
17.86 m
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Problem 4:
The blender has potential energy.
Given:
w = 50 N
h = 5 m
Required:
PE
Equation:
PE = wh
Solution:
PE = wh
PE = (50 N)(5 m)
Answer:
250 J