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
soldi70 [24.7K]
3 years ago
9

A ball starts from rest and rolls down a hill at a constant acceleration of 5 m/s2. If it travels for 8 m how fast is it going i

n the end?
Physics
1 answer:
makkiz [27]3 years ago
5 0

Hi there!

We can use the following kinematic equation:

v_f^2 = v_i^2 + 2ad

vf = final velocity (? m/s)
vi = intial velocity (0 m/s)

a = acceleration (5 m/s²)

d = displacement (8 m)

Plug in the givens and solve.

v_f^2 = 0 + 2(5)(8)\\\\v_f = \sqrt{80} = \boxed{8.944 \frac{m}{s}}

You might be interested in
The 60-mm-diameter shaft is made of 6061-T6 aluminum having an allowable shear stress of τallow = 80 MPa. Determine the maximum
grin007 [14]
The maximum allowable torque must correspond to the allowable shear stress for maximization. To solve this, we use the torsion formula:

Max. Allowable Shear Stress = Maximum Torque ÷ Cross-Sectional Area
8 x 10^6 Pa = Maximum Torque ÷ pi*(d/2)²
Maximum Torque = 8 x 10^6 Pa * pi*(0.06/2)² m²
Maximum Torque = 22,619.47 J or
Maximum Torque = 22.62 kJ

As for the second question, I have no reference figure so I am unable to answer it. I hope I was still able to help you, though.
5 0
4 years ago
20 POINTS!!!
hram777 [196]
I think its inductance. If its not then I think its none of the above
5 0
3 years ago
All objects in the universe radiate some form of energy.<br> a. True<br> b. False
Harrizon [31]

That's true.  The only way to stop an object from radiating energy
is to cool it to absolute zero.  Since the temperature of space is
roughly 3 degrees above absolute zero, the atoms or molecules
of every object have some kinetic energy, and the object radiates
some heat. 

Of course it also absorbs heat at the same time, mostly from the
huge number of stars shining on it.

3 0
4 years ago
Read 2 more answers
What machine is a seesaw <br><br> mechanical <br><br> compound<br><br> complex <br><br> simple
guapka [62]
I'm pretty sure its simple! I hope this helps
5 0
4 years ago
A snail travels 10m in 3000 seconds. what is the snail's average speed?
Salsk061 [2.6K]

he makes 1 m im 300 seconds btw that snails slow lol

4 0
3 years ago
Read 2 more answers
Other questions:
  • About how many grams are in an ounce of cereal
    10·1 answer
  • The Bohr radius a0 is the most probable distance between the proton and the electron in the Hydrogen atom, when the Hydrogen ato
    9·1 answer
  • You feel a static electric shock when free electrons build up on your body then you touch a
    12·1 answer
  • Joan makes the device shown in her science class. What would happen to the magnetic field if she connects the battery in the opp
    7·2 answers
  • What are different ways the soil is important to the water cycle?
    7·1 answer
  • A conductor carrying 14.7 amps of current is directed along the positive x-axis and perpendicular to a uniform magnetic field. A
    6·1 answer
  • What is the maximum speed with which a 1200-kg car can round a turn of radius 94.0 m on a flat road if the coefficient of static
    8·1 answer
  • Determine the magnitude of the magnetic flux through the south-facing window of a house in British Columbia, where Earth's B⃗ fi
    12·1 answer
  • What is the force on an object due to its mass and gravity called?
    15·1 answer
  • if i travel to an unknown planet where the mass is twice that of mass earth , what would my mass on this planet be A. Greater th
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!