Equate these two equations for acceleration and express, for constant mass, FΔt.

1 answer:

6 0

Acceleration is the rate at which velocity changes.

Simply equate the two.

dV / dt = F/m 
F*dt = dV * m 

The impulse you give any object (average force * time elapsed) is equal to its change in momentum (mass * change in velocity).

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A toy car goes over a small ramp at a horizontal velocity of 1.21 m/s and decelerates at 0.131 m/s2 while in the air. The total

xz_007 [3.2K]

We need to considerate only the horizontal component of the motion of the toy car.

The formula for the distance in a decelerated motion is:
s = s₀ + v₀·t - 1/2·a·t²

where:
s₀ = initial position = 0
v₀ = initial velocity = 1.21 m/s
t = time elapsed = 0.342 s
a = deceleration = 0.131 m/s²

Plugging in numbers:
s = 0 + 1.21×0.342 - 0.5×0.141×(0.342)²
= 0.406 m

Hence, the toy car traveled a distance of about 41 cm.

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Do you divide mass by volume to get density

bogdanovich [222]

Density is the mass of an object divided by its volume. So the answer would be Yes. Hope it helps! (:

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3 years ago

A car with a mass of 1100kg is moving in a circular curve at a uniform velocity of 15m/s

Dmitrij [34]

Centripetal force = (mv^2)/r
so r = (mv^2)/ force = 246500 / 1100 = 224 m

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2 years ago