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1.B 4.C
2.A 5.C
3.C 6. a)dżul (J), b)wat (W),c) niuton(N), d)m/s²,e) dżul (J)
7. h=3m Vmax=√2*g*h
Vmax=√2*10m/s²*3m=√20m/s²*3m=√60m/s²≈7,75m/s²
8. m=200kg h=15 Ep=m*g*h
Ep=200kg*10m/s²*15m=30kJ
9. F=10N S=30m t=30s P=W/t W=F*r
W=10N*30m=300J P=300J/30s=10W