Afisherman casts his bait toward the river at an angle of 25° above the horizontal. as the line unravels, he notices that the bait and hook reach a maximum height of 2.9 m. what was the initial velocity he launched the bait with?
a) 6.3 m/s
b) 18 m/s
c) 7.6 m/s
d) 7.9 m/s

Um vetor representa um deslocamento cujo módulo é 20 m. se v faz um ângulo de 60 graus com a horizontal, qual é o valor das componentes horizontal e vertical deste vetor?

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s.calculate eddy’s power rating

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer