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The position of a golf ball moving uphil...

The position of a golf ball moving uphill along a gently sloped green is given as a function time t by : `x=2+8t-3t^(2)`

A

At t=0, `vecF_(1)=50hat(i),vecf_(2)`=0

B

At t=2 sec ,`vecf_(1)= 50 hat(i), vecf_(2)=-10hat(i)`

C

At t= 4sec. `vecf_(1)=30hat(i),vecf_(2)=-20hat(i)`

D

At t= 5sec both blocks start movingt in + ive x-direction

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The correct Answer is:
A, C
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