Automobile Engineering in ME
The indicated power of a four stroke engine (in watts) is equal to (where P = Mean effective pressure in N/m², L = Length of stroke in metres, A = Cross-sectional area of the piston in m², and N = Speed of the engine in revolutions per second (r.p.s)

P.L.A.N
P.L.A.N/2
P.L.A.N/4
2 × P.L.A.N

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Automobile Engineering in ME
When the front wheels of a vehicle are locked during braking, then

Stopping distance becomes extremely long
Driver loses control over the steering, and the vehicle continues moving in its current direction
Rear tyres skid across the road surface, and the vehicle spins around
Front tyres skid across the road surface, and the vehicle spins around

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