3 years ago

A ball is dropped from a cliff and has an acceleration of 9.8 m/s^2 how long will it take the ball to reach a speed of 24.5 m/s

1 answer:

5 0

Acceleration of ball (a) = 9.8 m/s^2 Speed (v) = 24.5 m/s Time (t) = Acceleration / Time = v / a = 24.5/9.8 = 2.5 s So it will take 2.5 seconds to reach that speed.

You might be interested in

You Discover A Beautiful Island Upon Which You May Build Your Own Society. You Make The Rules. What Is The First Rule You Put In

alekssr [168]

Answer: no plastic

Explanation:

4 0

3 years ago

Read 2 more answers

A bulldozer drags a log weighing 500 n along a rough surface. the cable attached to the log makes an angle of 30 degrees with th

vichka [17]

T=Fn*u*sin30 = 500N * .5 * .5 = 125N

8 0

3 years ago

Read 2 more answers

A lawn mower engine running for 20 m i n does 4, 5 6 0, 0 0 0 J of work. What is the power output of the engine?

VladimirAG [237]

Answer: $3800\ W$

Explanation:

Given

Lawn mover running for $t=20\ min$

and does $W=4560\times 10^3\ J$

We know Power is rate of work i.e.

$P=\frac{\text{Work}}{\text{time}}$

$P=\frac{4560\times 10^3}{20\times 60}$

$P=3800\ W$

Thus Power output is $3800\ W$

4 0

3 years ago

The force that attracts objects towards another object.

Marizza181 [45]

Answer:

Gravity Force

Gravity Force(also known as Weight) The force of gravity is the force with which the earth, moon, or other massively large object attracts another object towards itself. By definition, this is the weight of the object your welcome

5 0

3 years ago

A tennis ball weighs 2 kg and is traveling at 10 meters per second. What is the tennis ball’s kinetic energy? Find the exponent

masha68 [24]

Kinetic energy = 1/2 * mass* speed^2
= 1/2 * 2* 10*10
= 100 J

8 0

3 years ago