Answer:
F = -2527.35 N
Explanation:
Given,
mass per unit time = 58.1 Kg/s
Speed of the water = 43.5 m/s
Final momentum = 0 kg/s
Force = Change in momentum
F = Final momentum - initial momentum
F = 0 - initial momentum
F = -2527.35 N
Hence, the Force exerted is equal to F = -2527.35 N
Answer:
You would want search A.Ibn al-Haytham's
Answer:
56250 N
Explanation:
mass, m = 6000 kg
initial speed, u = 20 m/s
final speed, v = 5 m/s
distance, s = 20 m
Use third equation of motion
5 x 5 = 20 x 20 + 2 a x 20
25 = 400 + 40 a
a = - 9.375 m/s^2
Braking force, F = mass x acceleration
F = 6000 x 9.375
F = 56250 N
Answer:
360 km/h
Explanation:
Velocity =Distance/time ⇒ distance = velocity×time
Distance for 1st 2 h = 400×2 = 800 km
Distance for next 1 h = 300×1 = 300 km
Distance for last 2 h = 350×2 = 700 km
Therefore total distance traveled = 1800 km
So average speed = 1800/5 = 360 km/h
Answer:
°C = Density of water (g/cm3)
4° = 1.0000
20° = 0.9982
40° = 0.9922
60° = 0.9832
80° = 0.9718