The total kinetic energy of the system is 2.5J
(a) The maximum height reached by the projectile is 10.2 m and
(b) The horizontal distance traveled by the projectile is 40.8 m.
<h3>
Maximum height reached by the projectile</h3>
H = u²sin²θ/2g
H = (20²(sin(45))² / (2 x 9.8)
H = 10.2 m
<h3>Time of motion</h3>
T = (2u sinθ)/g
T = (2 x 20 x sin(45) )/(9.8)
T = 2.886 s
<h3>Horizontal distance traveled by the projectile</h3>
x = (v cos(45) x t
x = (20 x cos(45)) x 2.886
x = 40.8 m
Thus, the maximum height reached by the projectile is 10.2 m and the horizontal distance traveled by the projectile is 40.8 m.
Learn more about maximum height here: brainly.com/question/12446886
#SPJ1
Answer:
Mintu should have chosen material with lower specific heat.
Hope this is useful!! <3
B. chemical energy
because thats the only way i see it out of your anwser choices hope i helped
