Question

Please answer this question for 20 points... A car possesses 20 000 units of momentum. What would be the car's new momentum if...
a. its velocity was doubled.
b. its velocity was tripled.
c. its mass was doubled (by adding more passengers and a greater load)
d. both its velocity was doubled and its mass was doubled.

Answer 1

Answer:

A.p = 40 000 units (doubling the velocity will double the momentum)

B. p = 60 000 units (tripling the velocity will triple the momentum)

C. p = 40 000 units (doubling the mass will double the momentum)

D. p = 80 000 units (doubling the velocity will double the momentum and doubling the mass will also double the momentum; the combined result is that the momentum is doubled twice -quadrupled)

Answer 2

Answer:

$\huge\bf{GIVEN\:}$

• Momentum (p) = 20,000 Units

To Find:

After Changes the Car's New Momentum - ?

$\bold\orange{Solution}$

• If Velocity Doubled -

(Doubling of Velocity = Doubling Of Momentum)

= 2 × 20,000

= 40, 000 units

• If Velocity Tripled -

(Tripling of Velocity = Tripling of Momentum)

= 3 × 20,000

= 60,000 Units

• If Mass doubled:

(Doubling of Mass = Doubling of Momentum)

= 2 × 20,000

= 40,000 Units

• If its velocity was doubled and its mass was doubled:

2(Doubling of Velocity = Doubling Of Momentum)

= 2 × 2(20,000)

= 4(20,000)

= 80,000 Units

$\bf\implies{80000\:Units}$

The Answer is 80,000 Units.