Answer:
Acceleration,
Explanation:
Initial velocity of a particle in vector form, u = (-5i - 2j) m/s
Final velocity of particle in vector form, v = (-6i + 7j) m/s
Time taken, t = 8 seconds
We need to find the magnitude of acceleration vector. The changing of velocity w.r.t time is called acceleration of a particle. It is given by :
or
Hence, the value of acceleration vector is solved.
Answer:
Hope that helps
Explanation:
Gravity is a force of attraction between objects that is due to their masses. The force of gravity can change the motion of an object by changing its speed, direction, or both. ... Therefore, all matter is affected by gravity. That is, all objects experience an attraction toward all other objects.
Answer:
Mass of the string, m = 37.7 grams
Explanation:
It is given that,
Length of the string, l = 1.7 m
Tension in the string, T = 22 N
Time taken by the string,
The speed in the wave in the string is given by the following formula as :
is the mass per unit length,
Also,
m = 0.0377 kg
or
m = 37.7 grams
So, the mass of the strings is 37.7 grams. Hence, this is the required solution.
Circumference is
(approx.)
Speed is 4 times that. That is, 150.8 cm/s or 1.508 m/s.
If we get a point at distance 3 cm, we take the radius half of that. The circumference also gets half, so does the linear speed. We get 0.754 m/s or 75.398 cm/s.
Resultant force is 400-600=-200N.
-200=60a solve for a.