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enyata [817]
3 years ago
5

A lizard accelerates from 2 m/s to 10 m/s in 4 seconds. what is the lizard average acceleration

Physics
1 answer:
VLD [36.1K]3 years ago
8 0

Acceleration = (change in speed) / (time for the change)

change in speed = (ending speed) - (starting speed)

change in speed = (10 m/s) - (2 m/s)  =  8 m/s

Acceleration = (8 m/s) / (4 sec)

Acceleration = (8/4) (m/s²)

<em>Acceleration = 2 m/s²</em>

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A steel cable has a cross-sectional area 4.49 × 10^-3 m^2 and is kept under a tension of 2.96 × 10^4 N. The density of steel is
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The transverse wave will travel with a speed of 25.5 m/s along the cable.

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let T = 2.96×10^4 N be the tension in in the steel cable, ρ  = 7860 kg/m^3 is the density of the steel and A = 4.49×10^-3 m^2 be the cross-sectional area of the cable.

then, if V is the volume of the cable:

ρ = m/V

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then the speed of the wave in the cable is given by:

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  = 25.5 m/s

Therefore, the transverse wave will travel with a speed of 25.5 m/s along the cable.

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