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vitfil [10]
3 years ago
14

A race car accelerates uniformly at 14.2 m/s2. If the race car starts from rest how fast will it

Physics
1 answer:
Kaylis [27]3 years ago
6 0

Answer:

vf=94.4 m/s

Explanation:

acceleration is the final velocity minus initial velocity divided by time

a = (vf-vi)/t

Given:

a= 14.2 m/s^2

vi= 0 (at rest)

t = 6.6

Solve for vf

a = (vf-vi)/t

a*t=vf-vi

(14.2)*(6.6)=vf - 0

vf=94.4 m/s

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Explanation:

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3 years ago
1. Determine the image distance in each of the following.
miskamm [114]

It is given that for the convex lens,

Case 1.

u=−40cm

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v

1

−

u

1

=

f

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v

1

−

40

1

=

15

1

v

1

=

15

1

−

40

1

v=+24.3cm

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Case 2.

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u=∞

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Now, using mirror’s formula

v

1

+

u

1

=

f

1

v

1

+

∞

1

=

15

1

v=+15cm

The image is formed at a distance of 15cm in left of mirror

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abruzzese [7]

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