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18 votes
18 votes
A drone moves with kinetic energy of 64.0joules if it weigh 8.0 kg .calculate its velocity​

User Fandyushin
by
2.9k points

1 Answer

23 votes
23 votes

Answer:

4 m/s

Step-by-step explanation:

The formula for kinetic energy is
KE = (1)/(2)mv^2 where m is mass and
v^2 is velocity squared. This problem can be solved by rearranging this formula to solve for velocity.

Step 1: Isolate the velocity


2KE=mv^2


(2KE)/(m)=v^2


v=\sqrt{(2KE)/(m)}

Step 2: Plug in given numbers and solve


v=\sqrt{(2*64)/(8)}=√(16)

v = 4 m/s

User Joe Pineda
by
3.2k points