All categories

2 years ago

A ball with an initial velocity of zero is dropped from a table onto the ground. After 2 s, the

Physics

2 answers:

WINSTONCH [101]2 years ago

7 0

Answer:

Explanation:

I don't know 200000000000000000000

GenaCL600 [577]2 years ago

5 0

Initial velocity=u=0m/s
Acceleration=a=10m/s^2
Time=t=2s

Final velocity=v

$\\ \sf\longmapsto v=u+at$

$\\ \sf\longmapsto v=0+10(2)$

$\\ \sf\longmapsto v=20m/s$

You might be interested in

Examples of rectilinear motion

EleoNora [17]

Answer:

Examples for Rectilinear Motion

1) The use of elevators in public places is an example of rectilinear motion.

2) Gravitational forces acting on objects resulting in free fall is an example of rectilinear motion.

3) Kids sliding down from a slide is a rectilinear motion.

4) The motion of planes in the sky is a rectilinear motion.

7 0

2 years ago

Read 2 more answers

Discuss the difference between waveform graphs and vibration graphs

Kitty [74]

Difference exists mainly in the label for x axis.

Explanation:

Shapes of waveform and vibration graphs are same.
Vibration graphs shows the particle at a single location in the path of the wave when time passes.
Waveform graphs shows the particle at multiple locations at a single moment of time.

6 0

2 years ago

A 37 N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface and the block ar

Ne4ueva [31]

Answer:

The frictional force acting on the block is 14.8 N.

Explanation:

Given that,

Weight of block = 37 N

Coefficients of static = 0.8

Kinetic friction = 0.4

Tension = 24 N

We need to calculate the maximum friction force

Using formula of friction force

$f=\mu mg$

Put the value into the formula

$f=0.8\times37$

$f=29.6\ N$

So, the tension must exceeds 29.6 N for the block to move

We need to calculate the frictional force acting on the block

Using formula of frictional force

$f = \mu N$

Put the value in to the formula

$f=0.4\times37$

$f=14.8\ N$

Hence, The frictional force acting on the block is 14.8 N.

6 0

2 years ago

How much current will pass through a 12.5 ohm resistor when it is connected to ta 115 volt source of electrical potential?

Marrrta [24]

Answer:

9.2 amperes

Explanation:

Ohm's law states that the voltage V across a conductor of resistance R is given by $V = R I$

Here, voltage V is proportional to the current I.

For voltage, unit is volts (V)

For current, unit is amperes (A)

For resistance, unit is Ohms (Ω)

Put R = 12.5 and V = 115 in V=RI

$115=12.5I\\I=\frac{115}{12.5}\\ =9.2\,\,amperes$

8 0

3 years ago

Type of energy transformed into chemical energy by plants is called type of energy transformed into chemical energy by plants is

yuradex [85]

I think the correct answer is light energy. It is light energy that is transformed into chemical energy by plants by the process called photosynthesis. In this process, plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen.

6 0

3 years ago