Arocket test sled accelerates at a constant rate of 25 m/s2 from rest while moving along a straight track. the rocket engine turns off instantly when the sled reaches a speed 37 m/s. the sled then moves freely (acceleration = 0) for a period of 7 s, after which the brakes are automatically applied giving a constant deceleration of -15 m/s2. what is the total distance that the sled moves?

332.01 m

Explanation:

The total distance be the

Case : 1 :- Acceleration

u = 0 m/s

v = 37 m/s

a = 25 m/s²

So, Applying equation of motion as:

Case : 2 :- No Acceleration

t = 7 s

v = 37 m/s

Case : 3 :- Deceleration

a = -15 m/s²

u = 37 m/s

v = 0 m/s

So, Applying equation of motion as:

Hence, S = 27.38 + 259 + 45.63 m = 332.01 m

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explanation:

connect the batteries in series and hope