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
-BARSIC- [3]
3 years ago
12

A ball of mass 0.3kg, moving at a velocity of 20m/s is suddenly hit by a force of 5N for a time of 0.03 sec. Find its new veloci

ty of motion​
Physics
1 answer:
VMariaS [17]3 years ago
4 0

Answer:

F * t = m * Δv

F * t = m * (v2 - v1) where v2 is the new velocity and v1 is the current velocity

m * (v2 - v1) = (F * t)

Plugging in the values,

0.3kg * v2 - 0.3kg * 20 m/s = 5 * 0.03 s

0.3 * v2 - 6 = 0.15

0.3 * v2 = 0.15 + 6

v2 = 6.15 / 0.3

v2 = 20.5 m/s

The new velocity of motion is 20.5 m/s.

You might be interested in
A busy waitress slides a plate of apple pie along a counter to a hungry customer sitting near the
Ostrovityanka [42]

Answer:

a. 0.5307 sec

b. 0.4458 m

c. =v_x=0.84\ m/s\ ,\ v_y=5.2\ m/s

Explanation:

Horizontal Motion

It describes the dynamics of an object thrown horizontally in free air. The initial horizontal velocity is maintained all the time since no horizontal forces are acting. The initial vertical velocity is zero at launch time, but it grows downwards powered by the acceleration of gravity.  

The object hits the ground at a distance x from the point of launching, after having traveled a vertical distance y_o, taking a time t to complete the travel. The formulas who relate the different magnitudes are

v_x=v_o

The horizontal velocity v_x is the same regardless of the elapsed  time

v_y=gt

x=v_ot

\displaystyle y=y_o-\frac{gt^2}{2}

The plate of apple pie left the counter at a speed  

v_o=0.84\ m/s

The counter is y_o=1.38\ m high.

a.

Knowing that

y_o=1.38\ m

We use this formula to compute t

\displaystyle y=y_o-\frac{gt^2}{2}

At the moment when the plate hits the floor y=0

\displaystyle 0=y_o-\frac{gt^2}{2}

\displaystyle y_o=\frac{gt^2}{2}

Solving for t

\displaystyle t=\sqrt{\frac{2y_o}{g}}

\displaystyle t=\sqrt{\frac{2(1.38)}{9.8}}

t=0.5307\ sec

b.

x=(0.84)(0.5307)

x=0.4458\ m

c.

v_x=0.84\ m/s

v_y=(9.8)(0.5307)

v_y=5.2\ m/s

3 0
4 years ago
Plsssss HELLPPP ILL MARK BRAINLIESTTTTTT PROMISE
11111nata11111 [884]

Answer:

Nuclear Reaction

Explanation:

Technically fusion and fission should be included, but a nuclear reaction includes both fusion and fission, so it must be the answer.

6 0
4 years ago
Can anybody please help? 15 points pls
Mariana [72]
Acceleration= v/ r
So you have to divide 700 by 0.800 which is equal to 875 m/s 2
5 0
3 years ago
Why is energy transferable?
disa [49]
Kinetic Energy<span>. </span>Energy<span> is transferred from one object to another when a reaction takes place. </span>Energy<span> comes in many forms and can be transferred from one object to another as heat, light, or motion, to name a few. ... This </span>energy<span> would be in the form of motion, with the person lifting the blue ball to a higher level.</span>
3 0
3 years ago
1.
lesya [120]

Answer:

Terrorists:scary,ruthless,morbid. Pretty:beautiful,sweet. Gay:happy,sweet,nice

Explanation:

Reeee

5 0
3 years ago
Other questions:
  • I. On the dot below, which represents the book, draw and label the forces (not components) that act on the book at the lowest po
    5·1 answer
  • Two types of positions are
    9·1 answer
  • How did ALS impact Stephen Hawking?
    5·1 answer
  • Two resistors, A and B, are connected in parallel across a 10.0 V battery. The current through B is found to be 2.0 A. When the
    10·1 answer
  • Two double bonds means that the total number of electrons being shared in the molecule is
    10·1 answer
  • A 93 kg astronaut and a 1400 kg satellite are at rest relative tothe space shuttle. The astronaut pushes on the satellite, givin
    8·1 answer
  • The masses are m1 = m, with initial velocity 2v0, and m2 = 7.4m, with initial velocity v0. Due to the collision, they stick toge
    14·1 answer
  • A uniform, solid disk with mass m and radius R is pivoted about a horizontal axis through its center. A small object of the same
    9·1 answer
  • Which is the correct standard notation for 9.3x10^5
    15·1 answer
  • 8. A spring of spring constant 4 N/m is stretched 0.5 meters. How strong is the restoring force?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!