As we know the formula of kinetic energy is
here given that
KE = 150,000 J
mass = 120 kg
we can use this to find speed
So speed of above object is 50 m/s
A glass falls from a table top and smashes on the floor 0.6 seconds later. How high is the table?
1 answer:
Answer:
1.8 m
Explanation:
Given: Glass falls from a table, smashes 0.6 seconds later
To find: How high a table is
Formula: Vv=gt, dv=1/2gt^2, t=2d/g
Solution: A table's <em>height</em> is measured from the top of the edge down to the floor. The tables are shown both have a height of 30 inches, which is common for many tables.
<u>Data</u>
- t = 0.6s
- g = 9.81 m/s²
- d = ?
<u>Equation</u>
- d =
²
<u>Math & Units</u>
- d = 4.905 (0.6²)
- d = 442.676
Hence the table is 1.8 m high
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Answer:
3.16 × W/
Explanation:
β(dB)=10 ×
=
W/
β=55 dB
Therefore plugging into the equation the values,
55=10 })[/tex]
5.5= })[/tex]
=
316227.76×= I
I= 3.16 × W/
Answer:
5.959 m/s
Explanation:
m = Mass of gymnast
u = Initial velocity
v = Final velocity
= Initial height
= Final height
From conservation of Energy
Velocity of gymnast at bottom of swing is 5.959 m/s