Answer :
Answer:
41.3 m/s
Explanation:
Speed: This can be defined as the rate of change of distance. The S.I unit of speed is m/s.
From Newton's fundamental equation,
F = ma ................. Equation 1
Where F = force, m = mass, a = acceleration.
make a the subject of the equation,
a = F/m ............... Equation 2
Given: F = 445000 N, m = 300000 kg.
Substitute into equation 2
a = 445000/300000
a = 1.48 m/s².
Also,
a = (v-u)/t............... Equation 3
Where v = final speed, u = initial speed, t = time.
Given: u = 27 m/s, t = 10 s.
Substitute into equation 3
1.48 = (v-27)/10
v-27 = 1.48×10
v-27 = 14.8
v = 41.3 m/s.
Thus the speed = 41.3 m/s