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madam [21]
4 years ago
6

A car accelerates at 2 meters per second per second. assuming the car starts from rest, how much time does it need to accelerate

to a speed of 30 m/s?
Physics
1 answer:
andrew11 [14]4 years ago
7 0
Speed = Starting speed + (time + acceleration)
Starting speed is 0, acceleration is 2 m/s, speed is 30
30 = 0 + 2t
t ( stands for time ) = 15
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A 5.3 kg cat and a 2.5 kg bowl of tuna fish are at opposite ends of the 4.0-m-long seesaw. how far to the left of the pivot must
nika2105 [10]
Moment about the pivot must be equal for the seesaw to balance. Initially, the first cat and the bowl are at 2 m from the pivot.

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3 years ago
how to find the change in spring potential energy of the block-spring system from when the block is released to when the block h
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3 years ago
Calculate the pressure on the ground from an 80 kg woman leaning on the back of one of her shoes with a 1cm diameter heel, and c
rodikova [14]

Answer:

Pressure of woman will be 99.87\times 10^5N/m^2

Pressure of the elephant will be 1716560.50N/m^2

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We know that force is given  F = mg

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Now mass of elephant m = 5500 kg

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Diameter = 20 cm

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So pressure will be P=\frac{53900}{0.0314}=1716560.50N/m^2

3 0
3 years ago
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