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1. A bus accelerates from rest to a speed of 15 m/s over a distance of 25 m. Determine the acceleration (assume uniform) of the bus.
distance traveled by the jeepney.

2. A jeepney accelerates uniformly from rest at 2.8 m/s2 in 3.25 seconds. Determine the distance traveled by the jeepney

3. A car travelling at 21.5 m/s comes to a stop in 2.45 s. Determine the distance of the
car before it completely stops (assume uniform acceleration).

4. A bicycle accelerates uniformly from 1.50 m/s to 7.25 m/s in 9.25 s. Determine the
acceleration of the bicycle.

Sagot :

JosephPombo123idn

Answer:

1. vf² = vi² + 2ad

15m/s² = 0² + 2(a)(25m)  

225m²/s² = (50m)a  

(225m²/s²)/50m = (50m)a/50m  

a = 4.5 m/s²  

2. d = v1t + ½ at²

d = 0² (3.25s) + 1/2 (2.8m/s²)(3.25s)      

d = 0 + 14.8m/s²  

d = 15m

3. d = (vi + vf )t / 2  

d = (0m/s + 21.5m/s) 2.45s / 2  

d = (52.7m/s²) / 2  

d = 26.3m

4. vf = vi + at

7.25m/s = 1.50m/s + (a)(9.25s)  

(7.25m/s) / (10.75m/s) = (10.75m/s)a / (10.75m/s)  

a = 0.7m/s²

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