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  1. J

    Projectile motion

    is it possible to find the initial velocity of a projectile if you only know the Force applied (47N) to the projectile and the mass (0.04kg) of the projectile (assuming air resistance is negligible).. oh and the angle it was fired at was 30 degrees.. thanks in advance
  2. J

    Finding spring constant

    what would be the best way of finding the constant of a compression spring... the only way i can think of is by placing a known force, which will probably putting like 1kg of weight (9.8N) on the spring and measuring the displacement, the only problem with this is that the spring may bend and it...
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