Sagot :
Answer:
the mass of the object is 2.449 kg or 2.45 kg.
Explanation:
v = 35 m/s
KE = 1,500 J
m = ?
[tex]KE = \frac{1}{2} mv^{2} \\\\(KE = \frac{1}{2} mv^{2})2 \\\\m = \frac{2KE}{v^{2} } \\m=\frac{2(1,500J)}{(35m/s)^{2} } \\m = \frac{3,000J}{1,225m^{2}/s^2 } \\m = \frac{3,000kgm^2/s^2}{1,225m^{2}/s^2 } \\\\m = 2.449 kg[/tex]
MASS
Problem:
#25. An object moving with a speed of 35 m/s and has a kinetic energy of 1500 J, what is the mass of the object.
Given:
- KE (Kinetic Energy) = 1500 J
- v (velocity) = 35 m/s
- m (mass) = ?
Solution:
[tex]m \ = \frac{2KE}{v {}^{2} } \: \\ m = \frac{2(1500)}{ {35}^{2} } \\ m = \frac{3000}{1225} \\ = {2.449}[/tex]
Answer:
- The mass of the object is 2.449 kg
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