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3 years ago

Question:

2 answers:

6 0

True
Acceleration is a change in velocity and velocity, in turn is a measure of the speed and direction of motion.

When objects fall to the ground, the gravity causes them to accelerate

valkas [14]3 years ago

5 0

Answer:

the answer is true.

Explanation:

hope it will help you

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A 5 kg bowling ball travelling at 2 m/s hits a motionless 10 kg bowling ball. If the smaller ball bounces back at a speed of -1

Ilia_Sergeevich [38]

Answer:

1.5 m/s

Explanation:

Conservation of momentum means the momentum of the system before the collision is the same as after.

The before, after momentum of each ball is ...

5 kg ball: (5 kg)(2 m/s), (5 kg)(-1 m/s)

10 kg ball: (10 kg)(0 m/s), (10 kg)(v)

The sum of the "before" products is the same as the sum of the "after" products:

(5 kg)(2 m/s) +0 = (5 kg)(-1 m/s) +(10 kg)v

(10 +5) kg·m/s = (10 kg)·v . . . . . add (5 kg)(1 m/s) to both sides

v = (15 kg·m/s)/(10 kg) = 1.5 m/s

The speed of the larger ball will be 1.5 m/s. Its direction of motion will be the opposite of that of the 5 kg ball after the collision.

7 0

3 years ago

a graph compares the weight and height of several different breeds of cat. What type of model is the graph?

pickupchik [31]

Answer: Mathematical Model

Explanation:

Took the test

3 0

3 years ago

What must happen to an object in order to accelerate it?

White raven [17]

Answer:

For an object to accelerate, appropriate force must be applied to the object to cause it to change it’s velocity if it’s already in motion. However, to cause it to overcome static friction if it is at rest, and cause it to change it’s velocity

Explanation:

6 0

3 years ago

a meteor Falls towards Earth's surface given that the acceleration due to gravity is 9.8 m/s^2 what is the meteors potential ene

ser-zykov [4K]

Answer: It’s 98,000

Explanation: Just did it on apex

5 0

3 years ago

Plzzzz urgent <br><br><br>solve this

Mariana [72]

Answer:

$\large{ \tt{☄ \: EXPLANATION}} :$

Before solving , You'll have to know - When an object starts from the state of rest , in this case , initial velocity ( u ) = 0

Notice that we're provided the time ( t ) in minutes. So , first thing we have to do is convert the minutes into seconds. It would be - Time ( t ) = 5 minutes = 5 × 60 sec = 300 sec [ 1 min = 60 sec ]

Here , We're provided - Initial velocity ( u ) = 0 , Final velocity ( v ) = 60 m / s , Time taken ( t ) = 300 seconds & We're asked to find out the acceleration ( a ) & distance covered by the jeep ( s ) .

$\large{ \tt{♨ \:LET'S \: START}} :$