Positively-charged particles consisting of two protons and two neutrons emitted by radioactive materials are A) beta particles.
2 answers:
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Explanation:
It is given that,
Mass of the Cadillac,
Speed of Cadillac, (towards north)
Mass of Volkswagen,
The cars stuck together and slid to a halt, leaving skid marks angled 35 degrees north of east.
According to the law of conservation of momentum,
The momentum along x axis, ............(1)
The momentum along y axis, ...........(2)
From equation (1) and (2) it is clear that,
So, the Volkswagen going just before the impact is 8.72 m/s. Hence, this is the required solution.