Question

Asked Sep 26, 2019

3 views

A ball is fired at a speed of 8m/s at 20° above the horizontal from the top of a 5m high wall. How far from the base of the wall will the ball hit the ground?

1 Rating

Step 1

**Given information:**

Initial velocity of the ball (u) = 8 m/s

Vertical component of the velocity (usinθ) = 2.73 m/s

Horizontal component of the velocity (ucosθ) = 7.51 m/s

Angle made by the velocity vector with the horizontal (θ) = 20^{0}

The height of the wall (h) = 5 m

Consider the upward direction as “+ve” and downward direction as “-ve”

Step 2

Now consider 2nd equation of motion,...

Tagged in

Q: A bullet is fired into the air with an initial velocity of 1,500 feet per second at an angle for 45°...

A: The bullet can be considered as a projectile. The equation for the horizontal velocity of the bullet...

Q: Question in pic below.

A: a)The required potential energy of the alpha-radon composition is,

Q: 23.23 A uniform electric field has magnitude E and is directed in the negative x-direction. The po...

A: a)the electric field direction is from positive charge to neagtive charge or from the higher potenti...

Q: Show that vsound in air=sqrt(1.4kT/M) is equal to v=331 m/s sqrt(T/273)

A: Finding the speed of sound in air:

Q: A car of mass ?push=1100 kg is capable of a maximum acceleration of 4.00 m/s2. If this car is requir...

A: The maximum force that the car of mass is 1100 kg exerts is

Q: Three displacement vectors are:A = 35.0 m @ 30.0o above the + x-axisB = 27.5 m @ 30.0o to the left o...

A: The Figure shows the displacement vectors A, B, and C and their respective angles with x and y axis ...

Q: A juggler throws a bowling pin straight up in the air. After the pin leaves his hand and while it is...

A: as the pin is move upward, the gravity always acts down ward direction. which is oppsoite to its dir...

Q: Two expressions were used for the drag force experienced by a moving object in a liquid. One depende...

A: When a body moving through fluid, there is a resistance provided by the fluid to the motion of the o...

Q: Each of the four parts of this problem depicts a motion diagram for a charged particle moving throug...

A: From the motion diagram in 1st case, the length of the vector is decreasing towards the left. This m...