0
M/s -1 - For example gravity has a constant acceleration of 9 M/s -1
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Describe the motion of a bus whose accelaration is zero but the speed is not zero?
It is slowing down. The bus is not picking up speed--accelerating--and its speed isn't zero, as it is not completely stopped. ------------------------------------------------------------------------------------------------------------ The above answer is incorrect as slowing down indicates a negative acceleration not a zero one. The correct answer is that the bus is at a constant speed - any constant speed.
Class 9 -what is the formulae for finding retardation in physics?
Retardation or deceleration is negative accelaration formula for finding retardation is same as that of accelaration: v-u/t, where v is the final velocity, u is the initial velocity and t is the time taken. eg- a bus is travelling at 20 m/s. Brakes are applied to stop the bus. The total time taken by the bus to stop is 2 s. Find its retardation. ans- v=0; u=20; t=2 accelaration= 0-20/2 a= -10 m's^2 retardation= 10 m/s^2 (because retardation is negative accelaration)
Is accelaration directly proportional or inversely proportional to the force?
Directly. That's why you can't move a car by blowing on it.
How do you find velocity given only the time?
You cannot. You must have distance (or displacement). If you know it is from a standing start then accelaration will do.
What factors are involved in determining stopping distance of a toy car?
arent u a science student? its simple. time,initial velocity,accelaration the formula is; v2=u2+2as here v is final velocity u is innitial velocity a is accelaration s will be3 the stopping distance okkkk!!
What is zero accelaration?
When an object is not accelerating at all. It has constant velocity.
Is accelaration due to gravity is constant?
yes and its 9.8m/s2
What is an object that continues to move at a constant speed without a force?
Accelaration
How is force related to mass at contant accelaration?
Directly. (F = m a) If a (acceleration) is a constant then the relationship between farce and mass is constant.
What is the equation for gravitational force?
F = GMm/r2 where G is the gravitational accelaration constant apprximately equal to 6.67 x 10-11
What is the accelaration of a car that travels in a straight line at a constant speed?
a = (v2-v1)/t if velocity never changes then acceleration is always zero
What does the graph of accelaration vs.time look like for something going a constant velocity?
Constant velocity implies zero acceleration, so you would have a horizontal line, identical to the x-axis.
How does a change in force effect accelaration?
Force is directly proportional to acceleration, so acceleration changes as force changes, whether it increases, decreases, or remains constant.
What is the formula for input force?
Force = mass x Accelaration
Can there be a body moving with constant acceleration but zero velocity. With examples?
since accelaration is the change in velocity of an object per unit time......if velocity is zero then there is no acceleration.its nt possible
What is the unit for accelaration?
food
Accelaration is a change in what?
it changes the speed
