Attempt following question by selecting a choice to answer.
c
The kinetic energy E, of a body moving with a velocity
v is given by the equation
E = 12mv2, where
m is the mass of the body. Find the mass of a body moving with a velocity 69 m/s and having an energy of 3381 N. (Round the answer to two decimal places.)
eee cccA.
c1.92 kg
B.
c1.32 kg
C.
c49 kg
D.
c1.42 kg
cc
D
Step 1: E = 12mv2
Step 2: 2E = mv2
Step 3: 2Ev2 = m[Solve the equation for m.]
Step 4: m = 2⋅338169⋅69[Substitute the values.]
Step 5: m = 2⋅4969 = 1.42
Step 6: The mass of the body is 1.42 kg.