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Can the initial velocity be different if the final velocity is 0?
Wiki User
∙ 9y ago
Yes, of course.
Wiki User
∙ 9y ago
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What is initial velocity of the ball as the child lets it go at the top of a driveway?
The initial velocity is 0 metres/second.
A ball is dropped from a cliff and has acceleration of 9.8ms2 How long will it take the ball to reach a speed of 22.8ms?
The objective is to calculate the final velocity of 22.8m/s. We can use the formula v = u+at v is th final velocity u is the initial velocity which is equal to 0 in this case a=9.8m/s2( given) t is the time for achieving the final velocity 22.8 = 0+9.8 t t=22.8/9.8 t=2.3 seconds
A ball is dropped and falls for 3.3 seconds what is the ball's final velocity?
The final velocity?æwill be?æ 32.34m/s. It is given by the?æformula?æ v = ut+at, where a is acceleration due to gravity(9.8m/s^2), u is the initial (0), and t is the time taken.
A person jumps off a diving board 4.0m above the water's surface into a pool the person's downward motion stops 2.0m below the surface of the water estimate the avg. decleration of the person under wa?
so what you need to do is find the velocity that the person enters the water and then use the equation v sub final squared = v sub initial squared + 2*acceleration(final distance-initial distance). final velocity is zero, find the initial velocity yourself and use 2 as the final distance where the initial distance is 0, solve for acceleration. Easy way: the decelleration would have been twice that provided by gravity because the diver decellerated to zero in half the distance of the dive. The diver starts at zero and hits max velocity in 4 meters then goes from max velocity to zero in 2 meters. 2 x 9.81 m/s2 = ___
Which type of collision occurs when a baseball bat hits a baseball?
inelastic collision The formulas for the velocities after a one-dimensional collision are: where V1f is the final velocity of the first object after impact V2f is the final velocity of the second object after impact V1 is the initial velocity of the first object before impact V2 is the initial velocity of the second object before impact M1 is the mass of the first object M2 is the mass of the second object CR is the coefficient of restitution; if it is 1 we have an elastic collision; if it is 0 we have a perfectly inelastic collision
How will the final velocity be greater then the initial velocity?
It doesn't necessarily mean that the final velocity is always greater than the initial, if the initial velocity was at rest or 0 m/s then any form of movement would be greater. In cases where the final is smaller is like running into a wall or a decrease in acceleration.
What is a cars acceleration if it travels 0 to 55 miles per hour in 6 seconds?
Acceleration = Change in Velocity / Change in Time a = (Final Velocity - Initial Velocity) / (Final Time - Initial Time) = (55-0)/(5-0) = 55/5 a = 11 m/s^2
How do you find initial velocity if final velocity or distance is not present?
you cannot. you need to know one or the other if you're doing a problem where someone is throwing something in the air, the final velocity is 0
When are final and initial velocities taken ball kicked at 30 degrees at 10ms?
Initial velocity is 10 m/s in the direction it was kicked. Final velocity is 0, when friction and air resistance finally causes it to come to a halt.
What will be the final velocity if the acceleration of 10 meters per second squared is sustained for 7 seconds?
It will depend upon the initial velocity of the body. If 'u' be the initial velocity of the body, then the final velocity will be: v = u + at (v = final velocity, a = acceleration, t = time) i.e., v=u+10*7 = (u + 70) m/sec. If u=0 (i.e the initial velocity be zero) then final velocity, v=70 m/sec.
What is the difference between initial velocity and final velocity?
Initial velocity is the velocity an object begins with Final velocity is the velocity at which the object ends up in Say a car is travelling at 13 m/s and then crashes into a wall stopping it it's intitial velocity was 13 m/s and it's final velocity is at 0 m/s or Say a car starts off at 5 m/s but then accelerates from 5 m/s to 10 m/s. It's inital velocity would be 5 m/s but it's resulting or final velocity is 10 m/s
What is initial velocity of the ball as the child lets it go at the top of a driveway?
The initial velocity is 0 metres/second.
How many seconds does it take to go 30 mph?
Data is insufficient. initial velocity is 0. final velocity is 30 mph. Need acceleration to use the formula v = u + at.
What is the balloons initial velocity when a water balloon is dropped from the fifth floor of a building?
If you simply release an object, the initial velocity is always zero.
A ball is dropped from a cliff and has acceleration of 9.8ms2 How long will it take the ball to reach a speed of 22.8ms?
The objective is to calculate the final velocity of 22.8m/s. We can use the formula v = u+at v is th final velocity u is the initial velocity which is equal to 0 in this case a=9.8m/s2( given) t is the time for achieving the final velocity 22.8 = 0+9.8 t t=22.8/9.8 t=2.3 seconds
When two coins of mass 2 kg and 4 kg respectively collide what will be the change in velocity if initial velocity is 0?
If initial velocity is zero, the collision seems unlikely.
If an object is dropped and reaches the ground with a final velocity of 4 meter per second neglecting air friction how far did the object fall?
Use the mechanics formula Final velocity = initial velocity + acceleration * change in time 4m/s = 0 + (9.8 m/s²)t t = 0.41s distance = initial velocity * time + 1/2 accel * time² = 1/2(9.8m/s²)(0.41s)² = 0.82m
