Question: "A 23.0 g ball is fired horizontally with..."

High School
Other

Paligutanhk

Answered question

2021-12-16

A 23.0 g ball is fired horizontally with initial speed v0 toward a 110 g ball that is hanging motionless from a 1.00 m -long string. The balls undergo a head-on, perfectly elastic collision, after which the 110 g ball swings out to a maximum angle

θ_{max} = {51.0}^{\circ}

What was

v_{0}

Answer & Explanation

servidopolisxv

Beginner2021-12-17Added 27 answers

The expression of the initial speed from conservation of energy,

K E = P E

\frac{1}{2} m_{b 1} v_{0}^{2} = m_{b 2} g h

\frac{1}{2} m_{b 1} v_{0}^{2} = m_{b 2} g l (1 - \cos θ)

v_{0} = \sqrt{\frac{2 m_{b 2} g l (1 - \cos θ)}{m_{b 1}}}

Substitute the values,

v_{0} = \sqrt{\frac{2 (110 g) (9.8 \frac{m}{s^{2}}) (1.00 m) [1 - \cos (51)]}{(23 g)}}

= 5.895 \frac{m}{s}

Answer 5.895 m/s

Do you have a similar question?

Recalculate according to your conditions!

New Questions in Other

22+64
When a cold drink is taken from a refrigerator, its temperature is 5 degree C. After 25 minutes in a 20 degree C room its temperature has increased to 10 degree C. What is the temperature of the drink after 50 minutes?
How many minutes are there in $2 \frac{3}{5}$ hours?
Find the answer for $64$ power $\frac{1}{6}$ .
The following law describes the relationship between gas volume and pressure: ________. A)Boyle's law; B)Henry's law; C)Charles' law; D)Dalton's law
If an electric switch is open then no current flows through the circuit.
A)True;
B)False
The price elasticity of supply of a good is 0.8. Its price rises by 50 per cent. Calculate the percentage increase in its supply.
How many quarts are in 10 gallons?
When the net force acting on an object is zero, the total momentum of the system will:
A)remain constant;
B)increase with time;
C)decrease with time;
D)None of these
How many centimeters are in four meters?
A notebook computer has a mass of 2.25 kilograms. About how many pounds does the notebook weigh?
If the dot product of two non-zero vectors is zero, then the vectors A)are parallel to each other. B)are perpendicular to each other. C)can have any orientation. D)are anti-parallel to each other.
Which is longer 5 miles or 10 kilometers?
9 grams is how many milligrams?
How to write $673.5$ in scientific notation?

Didn't find what you were looking for?