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
Anvisha [2.4K]
3 years ago
6

A billiard ball moving at 5.00 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 4.33

m/s at an angle of 30 degrees with respect to the original line of motion. a. Find the velocity (magnitude and direction) of the second ball after the collision. b. Was the collision inelastic or elastic? (make a claim and support with evidence.)

Physics
1 answer:
n200080 [17]3 years ago
7 0

Answer

given,

initial speed of the billiard ball,u = 5 m/s

initial speed of second ball, u' = 0 m/s

after collision

final speed of first billiard, v = 4.33

at 30° from the original line

second velocity of the second billiard = ?

b)Collision between the two block is elastic.

mass of both the balls are not same

so,

θ₁ + θ₂ = 90°

 θ₁ = 30°

θ₂ = 90° - 30°

θ₂ = 60°

a) using conservation of momentum

  m u + m u' = m v cos θ₁ + m v' cos θ₂

  m x 5  + 0 = m x 4.33 x cos 30° + m x v' x cos 60°

  0.5 v' = 1.25

    v' = 2.5 m/s

You might be interested in
Which is true about inelastic collisions: a. An inelastic collision does not obey conservation of energy. b. An inelastic collis
Phoenix [80]

Answer:

Option c is correct

Explanation:

There are two types of collisions-elastic collision and inelastic collision.

In elastic collision, both kinetic energy and total momentum are conserved. On the other hand, in inelastic collision, total momentum is conserved but kinetic energy is not conserved. Thus, option b and d are incorrect.

Total energy is always conserved in both types. Thus, option a is incorrect.

In a perfectly inelastic collision, objects stick together. This happens because maximum kinetic energy is dissipated and used in bonding of the two objects. Thus, correct option is c.

5 0
3 years ago
A motorcycle is traveling with a velocity of 4 m/s and has a mass of 112 kg
Zarrin [17]

Answer: 896J

Explanation:

Given that

Mass of motorcycle = 112kg

kinetic energy = ?

velocity of the motorcycle = 4m/s

Since kinetic energy is the energy possessed by a moving object, and it depends on the mass (m) of the object and the velocity (v) by which it moves. Therefore, the motorcycle has kinetic energy

i.e K.E = 1/2mv^2

KE = 1/2 x 112kg x (4m/s)^2

KE = 0.5 x 112 x 16

KE = 896J

Thus, the motorcycle has 896 joules of kinetic energy.

8 0
3 years ago
A basketball is tossed upwards with a speed of 5.0 m/s. ​We can ignore air resistance.
FinnZ [79.3K]

We have that  the maximum height reached by the basketball from its release point is

S=1.3m

From the question we are told

  • A basketball is tossed upwards with a speed of 5.0 m/s. ​We can ignore air resistance.  
  • What is the maximum height reached by the basketball from its release point?

Generally the Newtons equation for Motion  is mathematically given as

V^2=u^2+2as\\\\Therefore\\\\0=25-19.6*S\\\\S=\frac{25}{19.6}\\\\S=1.276

S=1.3m

Therefore

The maximum height reached by the basketball from its release point is

S=1.3m

For more information on this visit

brainly.com/question/23366835

4 0
2 years ago
A car is traveling at an average speed of 70 m/s. How many km would the car travel in 6.5 hrs. ?
docker41 [41]

Answer:

<h2>38,769.23 miles</h2>

Explanation:

given:

A car is traveling at an average speed of 70 m/s.

find:

How many km would the car travel in 6.5 hrs. ?

solution:

distance = velocity over time

let velocity = 70 m/s

           time = 6.5 hrs.

convert velocity 70 m/s into m/h for consistency of units.

<u>70 mi. </u> x   <u>3600 sec.</u>  =  252,000 mi/hour

  sec.          1 hr.

now plugin values into the formula d = v/t

d = <u>252,000 miles/hour </u>

              6.5 hours

d = 38,769.23 miles

therefore, the distance travelled in 6.5 hours with a speed of 70 m/s is 38,769.23 miles

5 0
3 years ago
Time period of a simple pendulum is measured at Karachi. What change will occur in the time period, if it is measured on mount e
Reil [10]
The period of a pendulum is given by T=2 \pi  \sqrt{ \frac{l}{g} }
since Karachi is near sea level, g is larger than it is on Mt. Everest.  That means the pendulum will have a larger period on Mt. Everest than it would in Karachi.
5 0
3 years ago
Other questions:
  • Una lancha sube y baja por el paso de las olas cada 3.2 segundos, entre cresta y cresta hay una distancia de 24.5 m. ¿cual es la
    10·1 answer
  • Approximately how many asteroids that are 0.98 km in radius would it take to make a planet which has a radius of 6420.0 km
    9·1 answer
  • 1. what information does the atomic mass of an element provide?
    15·2 answers
  • We have to use either of these formulas
    15·1 answer
  • What happens to lights reflected angle when passing through glass?
    8·2 answers
  • If it requires 7.0 JJ of work to stretch a particular spring by 1.7 cmcm from its equilibrium length, how much more work will be
    11·1 answer
  • For each of the following statements determine whether it is correct or incorrect.
    10·1 answer
  • The following number - 0.050437 - written to TWO significant figures would be
    12·1 answer
  • Problem 18 if anyone could help that would be amazing!
    8·1 answer
  • To hit a fish that he sees beneath the water, where should he aim?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!