when brakes are applied to a bus ,the retardation is 25 cm/s^2 .the bys takes 20 s to stop.find the initial velocity of the bus.
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it is the right one dude hope it helps you
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ʜᴇʟʟᴏ ᴍᴀᴛᴇ!
Here, a( acceleration ) = - 25 cm/s²
t ( time ) = 20s
v ( Final Velocity ) = 0
v = u + at
0 = u + (-25)(20)
0 = u - 500
500 cm/s² = u
Hence, initial velocity of bus was 500 cm/s
Hope it helps
Here, a( acceleration ) = - 25 cm/s²
t ( time ) = 20s
v ( Final Velocity ) = 0
v = u + at
0 = u + (-25)(20)
0 = u - 500
500 cm/s² = u
Hence, initial velocity of bus was 500 cm/s
Hope it helps
vansh3140:
dear can u check ur units of initial velocity
Thanks friend for pointing out ☺️
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