Answer:
P car = 1500×400/12= 50,000kgm/s
P electron= 9.1×3.5×10^(-31+6)
= 31.85×10^-25 kgm/s
The momentum of car travelling 400 m is 50000 kg.m/s. The momentum of electron it traveling at a speed of 3.5*10⁶ m/s is 31.85×10⁻²⁵ kg.m/s.
Momentum is the product of the mass and the speed of the moving particle.
p =mv
Given is the mass of car m =1500 kg and
speed v = distance / time = 400/12
v = 33.33 m/s
Then the momentum of car is
p = 1500 x 33.33
p = 50000 kg.m/s
Thus, the momentum of car travelling 400 m in 12 s is 50,000 kg.m/s.
Given is the mass of electron m =9.1 *10⁻³¹ kg and speed is 3.5×10⁶ m/s, then the momentum of electron is
Pe= 9.1 *10⁻³¹ x 3.5×10⁶
Pe = 31.85×10⁻²⁵ kg.m/s
Thus, the momentum of electron traveling at a speed of 3.5*10⁶ m/s is 31.85×10⁻²⁵ kg.m/s.
Learn more about momentum.
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