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Alika [10]
3 years ago
9

What is the average acceleration of the object represented in the graph above over the eight seconds? 0.5 cm/s2 1.0 cm/s2 1.5 cm

/s2 2.0 cm/s2
Physics
1 answer:
Olenka [21]3 years ago
3 0

Answer:

Draw tangents to the graph at 1.0 s and 5.0 s. 0. 1. 2. 3. 4. 5. 6. 0 ... When the velocity component is negative, the extra displacement during ... 2 - 3 min. constant acceleration component until the car stops. ..... ii). The gravitational force and the drag force are doing work on the object. .... N) × (0.5 m) = 5 × 10. 2.

Explanation:

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Rick shoots a basketball at an angle of 35' from the horizontal. It leaves his hands 7 feet from the ground with a velocity of 2
Korvikt [17]

Given:

The angle of projection of the basketball, θ=35°

The height at which the ball leaves the hand, h=7 ft

The initial velocity of the basketball, v=20 ft/s

To find:

The parametric equations describing the shot.

Explanation:

The range, x of the basketball is given by,

x=v\cos\theta t

On substituting the known values,

\begin{gathered} x=20\times\cos35\degree\times t \\ \implies x=16.4t \end{gathered}

The change in the height, y of the basketball is given by,

y=-v\sin\theta t+\frac{1}{2}gt^2

Where g is the acceleration due to gravity.

On substituting the known values,

\begin{gathered} y=-20\times\sin35\degree\times t+\frac{1}{2}\times32\times t^2 \\ \implies y=-11.5t+16t^2 \end{gathered}

Final answer:

The parametric equations describing the shot are

\begin{gathered} \begin{equation*} x=16.4t \end{equation*} \\ \begin{equation*} y=-11.5t+16t^2 \end{equation*} \end{gathered}

8 0
1 year ago
A football player who weighs 550 N stands indoors wearing her football boots. The boot’s
EleoNora [17]

Answer:

183333 Pa

Explanation:

The weight of the football player is : 550 N ,thus the force the player exerts on the floor is 550 N

The area of blades in contact with the floor is = 30cm² = 0.003 m²

Pressure = Force / Area

Pressure = 550 / 0.003

Pressure = 183333 Pa

3 0
2 years ago
Two dogs are pulling a disk, but the disk is not moving. The disk does not move because the forces are (select one: unbalanced,
tiny-mole [99]

Answer:

balanced?

Explanation:

because if it wasn't moving that means they are pulling at a similar strength

8 0
3 years ago
Read 2 more answers
Which one of the following is described fully by its magnitude?
kompoz [17]
Energy (C) is fully described by its magnitude.
There's nothing else about it to measure. 

The other four things on the list are all vectors.
They need directions to go along with their magnitudes.
5 0
2 years ago
Can someone tell me the ans of this question quick
Drupady [299]

Answer:

6m/s

Explanation:

speed=distance÷time

speed=150÷25

speed=6m/s

4 0
2 years ago
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