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answers may have typos.

**1. A bike accelerates uniformly from rest to a speed of 7.10 m/s over a distance of 35.4 m.**

Determine the acceleration of the bike.

Determine the acceleration of the bike.

__my answer:__I used the formula v^2 = vo^2 + 2ad and got

**a = .712 m/s^2**

**2. A car traveling at 22.4 m/s skids to a stop in 2.55 s. Determine the skidding distance of the**

car (assume uniform acceleration).

car (assume uniform acceleration).

__my answer:__I solved for acceleration first (-8.78 m/s^2) then used d=Vot + 1/2(a)t^2 to get

**d = 28.57 m**.

**3. A bullet is moving at a speed of 367 m/s when it embeds into a lump of moist clay. The bullet**

penetrates for a distance of 0.0621 m. Determine the deceleration of the bullet when moving into

the clay.

penetrates for a distance of 0.0621 m. Determine the deceleration of the bullet when moving into

the clay.

__my answer:__I used the formula v^2 = vo^2 + 2ad and got

**a = -1.08 x 10^6 m/s**. (my issue

here is that the answer should be negative, not positive. right?)

**4. A dragster accelerates to a speed of 112 m/s over a distance of 398 m. Determine the**

acceleration of the dragster.

acceleration of the dragster.

__my answer:__Once again I used the formula v^2 = vo^2 + 2ad (with Vo = 0; at least I assume

that is true) and got

**a = 15.76 m/s^2**.

I think my equations and answers are right but if not, can someone help me out and correct me where I have made mistakes.

Thanks.