Answer:
B) 125 m
Explanation:
Your answer would be A. Solid. Hope this helps!
C is the best answer because we all know that clock is part of our daily lives but we don't know the about its background
14.36m/s
From the law of conservation of linear momentum
m1u1 + m2u2 = v(m1 + m2)
68×17 + 76×12= v(68+76)
1156+912 = 144v
2068 = 144v
v = 2068/144
=14.36 m/s
work is force x distance = 25 x 0.4
= 2.5x4 = 10joules
pwer would be 10j/2s watts .... 5 watts
