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3 years ago

8

Tarzan swings on a 30.0m long vine initially inclined at an angle 37 degrees with the vertical. What is his speed at the bottom

of the swing if he starts from rest?

1 answer:

Nutka1998 [239]3 years ago

7 0

Tarzan is a real n***a fax b

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Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and

lora16 [44]

The tension in the string and the acceleration must be equal for both masses. (See the free body diagrams)

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2 years ago

an aircraft has a liftoff speed of 53 m/s. what is the minimum constant acceleration an airplane must have to reach that takeoff

xxMikexx [17]

Answer:

$a=3.34\ m/s^2$

Explanation:

<u>Accelerated Motion </u>

It refers to the motion of objects in which velocity is not constant over time. If the change of the velocity occurs at the same rate, then we say it's uniformly accelerated. Being $v_o$ = initial speed, $v_f$ = final speed, a= constant acceleration, x= distance traveled

Then, the scalar relation between them is

$v_f^2=v_o^2+2ax$

The aircraft needs to reach a liftoff speed of 53 m/s from rest (assumed) having only 420 meters to do so. We can compute the acceleration by solving for a

$\displaystyle a=\frac{v_f^2-v_0^2}{2x}$

$\displaystyle a=\frac{53^2-0^2}{2(420)}$

$\boxed{a=3.34\ m/s^2}$

6 0

3 years ago

The_______ of an object is given relative to an origin

Setler79 [48]

The slope of an object is given relative to an origin.

8 0

3 years ago

kenneth warmed up a 100- ml sample of air in and expandable container. he displayed the resluts in the following graph. the resl

shepuryov [24]

Answer:

300k

Explanation:

3 0

2 years ago

Does a sled have inertia while sitting still

madam [21]

Answer:

Yes, a sled has inertia while sitting still.

Explanation:

From Newton's law of inertia, an object at rest will remain at rest unless it is acted upon by an external force. The reason the object will remain at rest unless an external force acts is because of inertia. Inertia means the resistance of an object to motion.

Thus, a sled hammer at rest will remain at rest unless it is acted upon by an external force. So we can conclude that it has Inertia.

7 0

3 years ago