dui or alcohol intoxication
Answer:
D. 5.7 m
Explanation:
The acceleration of the car is -8.7 m/s² and the car has an initial speed (u) of 10 m/s. The car said to come to rest, that means that the final velocity (v) of the car is 0 m/s.
To find the distance traveled by the car (s) before complete stop, this equation is being used:
v² = u² + 2as
The car traveled 5.7 m before coming to a complete stop
Answer:
B) Friction
Explanation:
The main source of error is the omission of the effect from friction between block and incline, which is directly proportional to the mass of the block. The force of gravity is constant. The friction force dissipates part of the gravitational potential energy, generating a final speed less than calculated under the consideration of a conservative system. Air resistance is neglected at low speeds like this case.
The momentum of the car is equal to:
We need to find the new speed v at which the new system (bycicle+rider) have same momentum p of the car. The mass M of the new system is M=120 kg. Using the value of momentum we found previously and the same formula for the momentum, we find
So, the speed of the bycicle must be 84 m/s.
Answer:
30.5
Explanation:
because you will basically have to be like flash