2. A deer (FE) runs steadily at a speed of 3 m s. A cheetah (*)...

 

 

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2. A deer (FE) runs steadily at a speed of 3 m s. A cheetah (*) sees the deer when the deer is 18 m in front of it. It immediately accelerates at 6 m s to chase the deer. (a) How far does the cheetah run before it catches the deer? [t = 3 s; s=27 m] a=6ms? 18 m (b) Find cheetah's speed when it catches the deer. [18 m s'] (c) Sketch the v-t graph of the cheetah and the deer on the same diagram. 2. A deer (FE) runs steadily at a speed of 3 m s. A cheetah (*) sees the deer when the deer is 18 m in front of it. It immediately accelerates at 6 m s to chase the deer. (a) How far does the cheetah run before it catches the deer? [t = 3 s; s=27 m] a=6ms? 18 m (b) Find cheetah's speed when it catches the deer. [18 m s'] (c) Sketch the v-t graph of the cheetah and the deer on the same diagram.