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3 years ago

10

What effect does mass have on a rollercoaster ride?

2 answers:

lorasvet [3.4K]3 years ago

8 0

Answer:

the weight and force of the roller coast and the speed of when it goes up and down

patriot [66]3 years ago

4 0

Answer:

The more mass a body has the more inertia it has. If the roller coaster is moving, it will want to keep moving, along the direction of motion, unless something causes it to speed up or slow down. This resistance of the moving roller coaster to changing its velocity is another example of its inertia.

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Answer:

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3 years ago

Please help will give brainliest !

sergij07 [2.7K]

Answer:

Explanation:

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3 years ago

A vector A makes an angle of 20 degree and B makes an angle of 110 degree with the x-axis. The magnitude of this vectors are 3 m

Fofino [41]

The resultant is 5 m at $73.1^{\circ}$

Explanation:

To solve the problem, we have to resolve each of the two vectors into its component along the x-axis and the y-axis.

Vector A has magnitude 3 m and angle 20 degrees with the x-axis, so its components are

$A_x = A cos \theta = (3)(cos 20)=2.82 m$

$A_y = A sin \theta = (3)(sin 20)=1.03 m$

Vector B has magnitude 4 m and angle 110 degrees, so its components are

$B_x = B cos \theta = (4)(cos 110)=-1.37 m$

$B_y = B sin \theta = (4)(sin 110)=3.76 m$

So, the x- and y- components of the resultant vector are

$R_x = A_x + B_x = 2.82+(-1.37)=1.45 m\\R_y = A_y+B_y = 1.03+3.76 =4.79 m$

Therefore the magnitude of the resultant is

$R=\sqrt{R_x^2+R_y^2}=\sqrt{(1.45)^2+(4.79)^2}=5.0 m$

While the direction is given by

$\theta=tan^{-1}(\frac{R_y}{R_x})=tan^{-1}(\frac{4.79}{1.45})=73.1^{\circ}$

Learn more about resultant of two vectors:

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brainly.com/question/5892298

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3 years ago

A juggler throws a ball straight up into the air. The ball remains in the air for a time (t) before it lands back in the juggler

natka813 [3]

Answer:

$9.8 m/s^2$ , downward

Explanation:

There is only one force acting on the ball during its motion: the force of gravity, which is given by

$F=mg$

where

m is the mass of the ball

$g=9.8 m/s^2$ is the acceleration of gravity (downward)

According to Newton's second law,

$F=ma$

where F is the net force on the object and a is its acceleration. Rearranging for a,

$a=\frac{F}{m}$

As we said, the only force acting on the ball is gravity, so F = mg and the acceleration of the ball is:

$a=\frac{mg}{m}=g$

Therefore, the ball has a constant acceleration of $9.8 m/s^2$ downward for the entire motion.

5 0

3 years ago

Why are stars so important to life on Earth?

sveticcg [70]

Answer:

B

Explanation:

The reason why is simple all stars hold key... compounds necessary to life. when a star supernovas it blast all of those out like a shotgun.

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3 years ago