1.

A hockey player is moving northward and suddenly turns westward with the same speed to avoid an opponent. The force that acts on the player is

Answer»

frictional force ALONG westward
muscle force along southward
frictional force along south-west
muscle force along south-wes

Solution :Frictional forcealongsouth- west
Asshow in diagram

LET OA = `p_(1)`initialmomentumof PLAYERIN northdirection
AB= `p_(2) - ` Finalmomentumof playerin westdirection
Bytrianglelawof VECTOR addition
OB = OA+ Ab

changein momentum
`=P_(2) =p_(1)`
Fromdiagramit isclearthat AR isin south- westdirection


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