Question

Good evening. Help please. I give 100 points. Grade 10. Subject: Free fall and curvilinear motion under the action of constant gravity.
Exercise 1. A stream of water directed at an angle of 60° to the horizon, reached a height of 15 m.
1) Find: a) the flow rate of water; b) the flight time of the jet particles; c) the flight range of the jet particles.
2) What will be the range of the jet if you direct it at an angle of 30° to the horizon? 3) Why does the water flow expand?

Answer 1

Answer:

Answer:

Answer:-

A hose shoots a stream of water at an

angle of 60° the horizontal with a velocity

of 20 m/s. Water will strike a wall

at a distance of 10 mat a height

(a) 5.36 m

(b) 10.22 m

(c) 12.42 m

(d) 16.84 m

Velocity of Water = 20 m/s at an angle of60

=>Horizontal Velocity 20Cos60 10 m/S

Distance of Wall = 10 m

Time Taken = 10/10 =1 sec

Vertical Velocity 20Sin60 10v3

Distance covered in 1 sec

S=ut + (1/2)at

10v3 1 + (1/2)(-101

10V3-5

= 12.32 m

Water will strike wall at 12.32 m heiaht

Answer 2

$\large{\underline{\underline{\textsf{{\orange{Answer :- }}}}}}$

A hose shoots a stream of water at an

angle of 60° the horizontal with a velocity

of 20 m/s. Water will strike a wall

at a distance of 10 mat a height

• (a) 5.36 m

• (b) 10.22 m

• (c) 12.42 m

• (d) 16.84 m

Velocity of Water = 20 m/s at an angle of60

• Horizontal Velocity 20Cos60 10 m/S

• Distance of Wall = 10 m

• Time Taken = 10/10 =1 sec

• Vertical Velocity 20Sin60 10v3

Distance covered in 1 sec

• S=ut + (1/2)at

• 10v3 1 + (1/2)(-101

• 10V3-5

= 12.32 m

Water will strike wall at 12.32 m height.