All categories

3 years ago

A golfer wants his shot to land

Physics

1 answer:

scoray [572]3 years ago

5 0

Answer:

35.67 m/s

Explanation:

Applying the formular for range,

R = u²sin2∅/g....................... Equation 1

Where R = Range, u = Initial Velocity, ∅ = angle of launch, g = acceleration due to gravity

make u the subject of the equation

u = √(Rg/sin2∅)............. Equation 2

Given: R = 122 m, g = 9.8 m/s², ∅ = 55°

Substitute these values into equation 2

u = √[(122×9.8)/(sin(2×55))]

u = √(1195.6/sin110)

u = √(1272.33)

u = 35.67 m/s

You might be interested in

Why are astronauts weightless in the space station?

olga55 [171]

Answer:

Astronauts float around in space because there is no gravity in space. Everyone knows that the farther you get from Earth, the less the gravitational force is. Well, astronauts are so far from the Earth that gravity is so small. This is why NASA calls it microgravity.

Explanation:

6 0

3 years ago

Explain the relationship between speed and steepness of the slope of the line on the distance-versus-time graph

balandron [24]

Explanation:

A distance-versus-time graph gives the distance an object has traveled after a given time.

In a distance-versus-time graph the slope represents the the speed of the object because $rise/run$ is

$\frac{\Delta distance }{\Delta time}=speed.$

And how steep the slope of the distance-versus-time graph is tells us how fast an object is moving; steeper the slope greater the speed. For example, a graph with slope 10 represents a greater speed than a graph with slope 2.

So the steepness of the slope of the distance-versus-time is the speed of the object, and greater the slope greater is the speed.

6 0

3 years ago

Physical Science, please explain your answer!

Svetach [21]

Answer:

The answer to your question is: 5 N to the west or to the left

Explanation:

Both forces go to the left, so the net force will be the sum of them.

Net force = 3 N + 2 N

Net force = 5 N

to the left, because the arrows signal to that direction

4 0

3 years ago

An object with a mass of 20 kg has a net force of 80 N acting on it. What is the acceleration of the object?

alexdok [17]

Newton's 2nd law of motion says

Net force = (mass) x (acceleration)

Plug in the things you know, and you have

80 N = (20 kg) x (acceleration)

Divide each side by (20 kg) :

80N / 20kg = acceleration

acceleration = 4 m/s²

4 0

3 years ago

Read 2 more answers

A proton is accelerated from rest through a potential difference V0 and gains a speed v0. If it were accelerated instead through

Svet_ta [14]

Answer:

The speed is $\sqrt{2}v_{0}$ .