3 years ago

A ball is thrown into a wall at a speed of 20 mls and bounces off going 10 mis in the opposite

Physics

1 answer:

Bingel [31]3 years ago

6 0

Explanation:

Given:

v₀ = 20 m/s

v = -10 m/s

t = 0.2 s

Find: a

v = at + v₀

(-10 m/s) = a (0.2 s) + (20 m/s)

a = -150 m/s²

The acceleration of the ball is 150 m/s² in the new direction.

You might be interested in

What is the minimum value of the friction coefficient between the boxes that will keep them from slipping when the 100 N force i

CaHeK987 [17]

Answer:

The friction coefficient's minimum value will be "0.173".

Explanation:

The given query seems to be incomplete. Below is the attached file of the complete question.

According to the question,

(a)

The net friction force's magnitude will be:

⇒ $F_{net}=ma$

$=5\times 1.7$

$=8.5 \ N$

(b)

For m₃,

⇒ $ma=\mu m_3 g$

Or,

⇒ $\mu=\frac{a}{g}$

$=\frac{1.7}{9.8}$

$=0.173$

5 0

2 years ago

i need help with queston like right now. Each molecule of iron oxide, Fe2O3, contains ____________________ atom(s) of iron.

ozzi

There are 3 iron atoms per molecule of iron oxide.

8 0

2 years ago

Read 2 more answers

Why do some athletes get injuries before and after the game?<br>

natita [175]

Answer:

they don't strech so they tear a muscle when they perform

Explanation:

3 0

2 years ago

Find the final velocity of a car that accelerates at +2 m/s2 for +4m from an

Stolb23 [73]

Answer:

Explanation:

according to third equation of motion

2as=vf²-vi²

vf²=2as+vi²

vf=√2as+vi²

vf=√2as+vi

vf=√2*2*4+3

vf=√16+3

vf=4+3=7

so final velocity is 7 m/s

5 0

3 years ago

An element with only neutrons?

nirvana33 [79]

All except for one tom of the element with different number of neutron

3 0

3 years ago