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3 years ago

15

If there are no other changes, explain what effect reducing the mass of the car will have on its acceleration when starting to m

ove.

1 answer:

densk [106]3 years ago

3 0

Answer:

when the mass of an object is decreased, the acceleration will increase

when mass is increased, acceleration decreases

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3 years ago

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3 years ago

Tarzan is running with a horizontal velocity, along level ground. While running, he encounters a 2.21 m vine of negligible mass,

Lena [83]

Answer:

a) $a_c = 1.09m/s^2$

b) T = 720.85N

Explanation:

With a balance of energy from the lowest point to its maximum height:

$m*g*L(1-cos\theta)-1/2*m*V_o^2=0$

Solving for $V_o^2$ :

$V_o^2=2*g*L*(1-cos\theta)$

$V_o^2=2.408$

Centripetal acceleration is:

$a_c = V_o^2/L$

$a_c = 2.408/2.21$

$a_c = 1.09m/s^2$

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$T - m*g = m*a_c$

Solving for T:

$T =m*(g+a_c)$

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4 years ago