If a particle of mass m is projected at anangle a with the horizontal,

1.	If a particle of mass m is projected at anangle a with the horizontal, then:a).the angular momentum of theparticle about point of projectionremains constant.b).the linear momentum of particleremains constantc).total mechanical energy remainsconstant in the absence of airresistanced).all the above
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If a particle of mass m is projected at anangle a with the horizontal, then:a).the angular momentum of theparticle about point of projectionremains constant.b).the linear momentum of particleremains constantc).total mechanical energy remainsconstant in the absence of airresistanced).all the above

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