1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NARA [144]
3 years ago
5

A ball of moist clay falls 15.0 m to the ground. It is in contact with the ground for 20.0 ms before stopping. (a) What is the m

agnitude of the average acceleration of the ball during the time it is in contact with the ground?
Physics
1 answer:
rosijanka [135]3 years ago
3 0

Answer:

a= -0.86 m/s²

The negative sign shows that ball down the ground or moving down

Explanation:

Vf² - Vo² = 2gS

where

Vf = velocity of clay as it hits the ground

Vo = initial velocity of clay = 0

g = acceleration due to gravity = 9.8 m/sec^2 (constant)

S = distance travelled by clay = 15 m

Substituting appropriate values,

Vf² - 0 = 2(9.8)(15)  

Vf = 17.15 m/sec.

Formula to use is,  

V - Vf = aT

where

V = velocity of clay when it stops = 0

Vf = 17.15 m/sec (as determined above)

a = acceleration

T = 20 ms  

Put the values to find acceleration

a=(V-Vf)/T

a=(0-17.15)/20

a= -0.86 m/s²

The negative sign shows that ball down the ground

You might be interested in
A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride. The weight of the flask and carbon tetrachloride is f
KatRina [158]

Answer:

<em>Well, I think the best answer will be is </em><em>1.59 g/mL Good Luck!</em>

6 0
3 years ago
A .5 kg toy train car moving forward at 3 m/s collides with and sticks to a .8 kg toy car that is traveling at 2 m/s what is the
Viktor [21]
Here we have perfectly inelastic collision. Perfectly inelastic collision is type of collision during which two objects collide, stay connected and momentum is conserved. Formula used for conservation of momentum is:
m_{1} * v_{1} + m_{2} * v_{2} = m_{1} * v'_{1}+ m_{2} * v'_{2}

In case of perfectly inelastic collision v'1 and v'2 are same.

We are given information:
m₁=0.5kg
m₂=0.8kg
v₁=3m/s
v₂=2m/s
v'₁=v'₂=x

0.5*3 + 0.8*2 = 0.5*x + 0.8*x
1.5 + 1.6 = 1.3x
3.1 = 1.3x
x = 2.4 m/s
4 0
2 years ago
Your performance on the pacer is used to measure which components of health- related fitness?
77julia77 [94]
Your performance on the pacer test is used to measure cardiovascular components of health-related fitness
8 0
3 years ago
Which of the following is a scalar quantity?
aleksandrvk [35]

Answer:

time is a scalar quantity.

8 0
3 years ago
S=1/2(u+v)t<br><br> i. u as subject <br> ii. V as subject
Arlecino [84]

Answer:

i. u=\frac{2s}{t}-v

ii. v=\frac{2s}{t}-u

Explanation:

i.)

s=\frac{1}{2}(u+v)t\\\\2s=(u+v)t\\\\\frac{2s}{t}=u+v\\\\\frac{2s}{t}-v=u

ii.)

s=\frac{1}{2}(u+v)t\\\\2s=(u+v)t\\\\\frac{2s}{t}=u+v\\\\\frac{2s}{t}-u=v

3 0
3 years ago
Other questions:
  • Moving at 3.2m/s slows down after 32 seconds moving at 1.2m/s<br> What is his acceleration?
    7·1 answer
  • 1 pts<br> How can two different nonmetals form a compound?
    7·1 answer
  • Richard is driving home to visit his parents. 135 mi of the trip are on the interstate highway where the speed limit is 65 mph .
    10·1 answer
  • A 3-cm high object is in front of a thin lens. The object distance is 4 cm and the image distance is –8 cm. (a) What is the foca
    7·1 answer
  • A group of elements are highly inactive and are used by chemists because of their chemical stability.
    10·1 answer
  • Plzzzzz helppppp plzzzzzzzzzzzzzzzzzzzzzzz
    11·2 answers
  • 1. The farthest star listed in the chart is? Arcturus, Capella, Aldebaran, Pollux, Regulus, Castor
    8·1 answer
  • Nature of components of mixture should be known to separate the mixture why?​
    10·1 answer
  • the flux through the coils of a solenoid changes from 6.78*10^-4 wb to 1.33*10^-4 wb in 0.0333 s if the solenoid has 605 loops h
    15·1 answer
  • By which factor is the sound intensity decreased at 3 meters?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!