Ask question

Ask question

All categories

3 years ago

7

A ball rolling along a floor doesn't continue rolling indefinitely. is it because it is seeking a place of rest or because some

force is acting upon it?

1 answer:

Ivan3 years ago

7 0

It is because gravity is pushing down on the ball

You might be interested in

You and some friends visit the Florida State Fair and decide to play a game. To play the game you must slide a metal hockey-type

frez [133]

I kissed spongebob on the lips omg

8 0

3 years ago

A 5.00 kg mass is attached to a spring on a horizontal frictionless surface. The elastic constant of the spring is 37.9 N/m. If

Fynjy0 [20]

45.6 i think i'm not sure pls double check

6 0

3 years ago

A ball whose mass is 0.4 kg hits the floor with a speed of 8 m/s and rebounds upward with a speed of 6 m/s. Collapse question pa

Colt1911 [192]

Answer:

The the average magnitude of the force exerted on the ball by the floor $11.2 \times 10^{3}$ N

Explanation:

Given:

Mass of ball $m = 0.4$ kg

Initial speed $v_{i} = -8 \frac{m}{s}$

Rebound speed $v_{f} = 6 \frac{m}{s}$

Contact time interval $\Delta t = 0.5 \times 10^{-3}$ sec

For finding the average magnitude of the force on the ball by the floor is given by,

$F_{avg} = \frac{\Delta P}{\Delta t}$

Here $\Delta P = m (v_{f}- v_{i} )$

$F_{avg} = \frac{m (v_{f} -v_{i} )}{\Delta t}$

$F_{avg} = \frac{0.4 \times (6 -( -8 ) )}{0.5 \times 10^{-3} }$

$F_{avg} = 11.2 \times 10^{3}$ N

Therefore, the the average magnitude of the force exerted on the ball by the floor $11.2 \times 10^{3}$ N

6 0

3 years ago

Read 2 more answers

A cylindrical container with a cross sectional area of 65.2 cm^2 holds a fluid of density 806 kg/m^3. At the bottom of the conta

Novay_Z [31]

The right answer is (b)

8 0

3 years ago

When only ________ acts on an object's mechanical energy is conserved.

murzikaleks [220]

When only ________ acts on an object's mechanical energy is conserved.

<u>Answer</u><u>:</u>

Momentum

8 0

3 years ago

Read 2 more answers