3 years ago

What is the velocity of an object that has been in free fall for 2.5 s?

Physics

1 answer:

zvonat [6]3 years ago

8 0

Answer: D. 25 m/s Downward

Explanation:

V = (g)(t)

V = (9.8 m/s²)(2.5)

V = 24.5 m/s

You might be interested in

A car has a momentum of 10,000 kg x m/s and has a mass of 800kg what's the car velocity

leonid [27]

Answer:

Explanation:

Momentum P=mass×velocity

1000=800×velocity

1000=800V

V=1000/800=2.5m/s

3 0

3 years ago

3(NH4)2CO3 what does the 3 in front mean?

VladimirAG [237]

Answer:

3 in front means the no.of NH4 atoms

Hope it is correct ^_^

7 0

3 years ago

Consider that a clay model of a tiger has a mass of 0.195 kg and glides on ice at a speed of 0.75 m/s. It hits another clay mode

juin [17]

Answer:

The final velocity after the collision is 0.27 m/s.

Explanation:

Given that,

Mass of tiger, m = 0.195 kg

Initial speed of tiger model, v = 0.75 m/s

Mass of another clay model, m' = 0.335 kg

Initially, second model is at rest, v' = 0

We need to find the final velocity after the collision. It is a case of inelastic collision. Using the conservation of linear momentum as :

$mv+m'v'=(m+m')V\\\\V=\dfrac{mv+m'v'}{(m+m')}\\\\V=\dfrac{0.195\times 0.75}{(0.195 +0.335 )}\\\\V=0.27\ m/s$

So, the final velocity after the collision is 0.27 m/s.

6 0

4 years ago

The 9 kg block is then released and accelerates

katrin [286]

Answer: 1458

explanation

7 0

3 years ago

which factors affect absorption and reflection of thermal energy? check all that apply. THIS IS A TEST

Orlov [11]

Answer:

I have a test too now

Explanation:

do not know

4 0

3 years ago