Answer:
CHEMICAL WHETEARING
Explanation:
good luck on ya test bud
Initial velocity = Vo= 25 m/s
Final velocity = V = x
Acceleration= a = 6 m/s^2
time= t = 4 seconds
Appy the equation:
V = Vo + at
Replacing:
V = 25 + 6(4) = 25 + 24 = 49 m/s
Given
Work function
Answer:O 7.1x10^-7 m
F=20N
mu=-10N
F=ma
20-10=10
10=(5)(a)
a=2 m/s^2