Answer:
New_momentum = 750 [kg.m/s]
Explanation:
Momentum is defined as
M = mass* velocity
Original momentum
M_old = 100 Kg * 5 m/s = 500 [kg.m/s]
If the car pulls over and picks up two people. The mass of the car is now 150 kg, but the velocity stays the same.
New momentum
M_new = 150 Kg * 5 m/s = 750 [kg.m/s]
number of protons in a nucleus
<span>C. the puck's weight and the air blowing </span>
Answer:
The net force acting on the otter along the incline is 13.96 N.
Explanation:
It is given that,
Mass of the otter, m = 2 kg
Distance covered by otter, d = 85 cm = 0.85 m
It takes 0.5 seconds.
We need to find the net force acts on the otter along the incline. If a is the acceleration of the otter. It can be calculated using second equation of motion as :

Here, u = 0 (at rest)




The net force acting on the otter along the incline is given by :
F = ma

F = 13.6 N
So, the net force acting on the otter along the incline is 13.96 N. Hence, this is the required solution.