Answer:
the curve inclination is increased so that a weight component helps keep the car on track
Explanation:
In the sledging competition these devices go at quite high speeds over 100 km/h, so when reaching the curves the friction force is not enough to keep the car on the track. For this reason, the curve inclination is increased so that a weight component helps keep the car on track.
In general we can solve Newton's second law for this case, with the condition of no friction, it is found that
V² = r g tan θ
Where V is the maximum velocity, r is the radius of the curve a, θ is the angle of the inclination
Answer:
A
Explanation:
Pushing a car up a steep hill is the most work. First of all a car is heavy. Secondly, its hard to walk up a steep hill let alone push a car up one.
Answer:
D
Explanation:
Jack nd Jill did the same amount of work but jack had more power
Please give brainlist
Answer:
Explanation:
The main parts of an electric motor include the stator and rotor, a series of gears or belts, and bearings to reduce friction. DC motors also need a commutator to reverse current direction and keep the motor spinning. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft.
Answer:
12 volt
Explanation:
More volts=more resistance.
To solve this problem, use the following equation: v = v0 + at; where v is the final velocity, v naught is the initial velocity, a is acceleration, and t is the time. This is one of the few physics formulas you should have memorized for kinematics. Hope this helps
