Answer:
i. 7.5 m
ii. 15000 N
Explanation:
Area under vt graph shows the displacement
so area of triangle ABE= 1/2×15×2
=7.5 m
ii) F=ma
here, m=1000kg
and a=v-u/t
=15-0/1
a=15
F=1000×15=15000N
We are given with
W = <span>2.34 J
D = 3.4 cm
L = 4.6 cm
To get the pressure of the steam we use the formula
W = P</span>ΔV
2.36 J = P π (3.4 x 10-2)²/4 (4.6 x 10-2)
P = 56508 Pa
Power = Energy / time
P = 482J/90s = 5.3556W
P = 5.3556W
