False, that’s not correct .
When a vehicle changes direction, its velocity also changes since velocity comprises both speed and direction.
<h3>How do you calculate final velocity?</h3>
V f is equal to V i plus At. The final velocity of an item can be calculated for a given beginning velocity by multiplying the acceleration brought on by a force by the time the force is applied and then adding the result to the initial velocity.
<h3>What is the collision formula?</h3>
An elastic collision is one in which the momentum, p, and the kinetic energy, KE, are both conserved. In other words, po = pf and KE0 = KEf are the results. We will write 1/2 m1 when we remember that KE = 1/2 mv2 (v1i) 2 + 1/2 m2(vi) (vi) 2 is equal to half of m(v1f) and m(v2f).
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The correct option is (b) 5n
A result, the object is being acted upon by a net downward force of 5N.
The force that is produced by summing the vector sums of all the forces acting on an object is known as the resultant force. The effect of the resulting force is the same as the sum of all the acting forces operating on the object. The direction of the forces must be considered when calculating the resulting force.
The northward force is Fn = 10N, given.
Fs=15N is the southern force.
The net force on the phone is Fnet =?N, which is necessary.
Downward pressure is applied by the object's weight, and upward pressure is applied by upward resistance. The vector sum of these two forces will represent the net force.
Fnet = Fs - Fn (Considering the direction downward as positive)
Fnet = 15N - 10N
Fnet = 5N
There is a net downward force of 5 N acting on the object as a result.
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Answer:
Explanation:
Given:
length of unstrained spring,
mass attached to the spring,
length of the spring after hanging the mass,
energy to be stored in the spring,
<u>The length of the spring stretched after hanging the mass:</u>
<u>Therefore the stiffness constant of the spring:</u>
where
F = is the force to which the spring is subjected for the corresponding change in length .
here,
<u>As we know that the spring potential energy is given as:</u>
where
extension in the length of the spring
<u>So the total length of the spring when it stores 10 J energy:</u>
C is your answer im pretty sure