Question

An arrow has a mass of 0.08 kg and is flying 1.2 m above the ground with a

speed of 32 m/s. What is the total mechanical energy of the arrow? The
acceleration due to gravity is 9.8 m/s2.
O A. 4J
B. 42 J
C. 1 J
D. 40 J

Answer 1

B 42

Mechanical Energy= Kinetic Energy + potential energy TE=1/2mv²+mgH

= 41.9 J