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lapo4ka [179]
2 years ago
5

An object is moving with an initial velocity of 3.3m/s it is subject to a constant acceleration of 3.7 m/s2 for 10 s. How far wi

ll it have traveled during the time of its acceleration
Physics
1 answer:
egoroff_w [7]2 years ago
8 0

Answer:

218m

Explanation:

Given parameters:

Initial velocity  = 3.3m/s

acceleration  = 3.7m/s²

time   = 10s

Unknown:

How far will it travel during the time of acceleration  = ?

Solution:

We use of the kinematics equations to solve this problem;

          S  = ut  +  \frac{1}{2} at²  

S is the distance

u is the initial velocity

t is the time

a is the acceleration

   So;

            S  = (3.3x10)   +   (\frac{1}{2}  x 3.7 x 10²)  = 218m

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Answer:

8.9 m NorthEast

Explanation:

a² + b² = c²

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8 0
3 years ago
A pitcher delivers a fast ball with a velocity of 43 m/s to the south. the batter hits the ball and gives it a velocity of 51 m/
hoa [83]
Assuming north as positive direction, the initial and final velocities of the ball are:
v_i=-43 m/s (with negative sign since it is due south)
v_f=+51 m/s
the time taken is t=1.0 ms=0.001 s, so the average acceleration of the ball is given by
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And the positive sign tells us the direction of the acceleration is north.
4 0
3 years ago
the density of gold is 19.3 g/cm3. suppose a certain gold wedding ring deplaced 0.55mL of liquid when dropped in a glass of spar
adell [148]

Answer:

19.3

Explanation:

Assuming we have to find Specific gravity of gold.

As we know that specific gravity is defined as the ratio of weight of the object and weight of the water displaced by the object

so it is given by

specific gravity = weight of the object/weight of the water displaced

now we have

weight of the object = (density)(volume)g

weight of object = (19.3)(0.55)g

now weight of the liquid displaced is given by

weight of water displaced = (1 g/cm^3)(0.55ml)g

now we have

specific gravity = (19.3×0.55)/(1×0.55)

specific gravity= 19.3

8 0
3 years ago
What is the current of a 10 Ohm resistor attached to a 9 volt battery?
Gnom [1K]
I'm giving you a general formula , its called ohm law it states that <span>electric current is proportional to voltage and inversely proportional to resistance

if V=voltage associated with the battery
 R=resistance , I=current then
</span>\boxed{V=I*R}<span>
</span>
7 0
3 years ago
What is the average speed of a train that travels at 100km/hr for 6 hours and then 120km/hr for 5 hours
Sindrei [870]

Answer:

Explanation:

Average speed = Total distance / Total time.

100 km/hr

r = 100 km / hr

t = 6 hours

d = 6 * 100 = 600 km

120 km / hr

r = 120 km / hr

t = 5 hour

d = 120 * 5

d = 600 km

Total distance = 600 + 600 = 1200 km

Total time = 5 hour + 6 hours = 11 hours.

Average speed = 1200 km / 11 hours = 109.1

5 0
3 years ago
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