Ancy C Simon Physical Science Optional Register Number-13971004
Ancy C Simon Physical Science Optional Register Number-13971004
Ancy C Simon Physical Science Optional Register Number-13971004
F=ma
Units of Force = Newton (N)
SI units for mass is kg
SI units for acceleration is m/s2
• We know that
objects with
different masses
accelerate to the
ground at the same
rate.
• However, because
of the 2nd Law we
know that they
don’t hit the ground
with the same force.
F = ma F = ma
98 N = 10 kg x 9.8 m/s/s 9.8 N = 1 kg x 9.8
m/s/s
Applications of 2nd Law
Check Your Understanding
Determine the accelerations that result when a 12-N net force is applied to
tripled and the mass is doubled, then what is the new acceleration of the
sled?
tripled and the mass is halved, then what is the new acceleration of the
sled?
Your answers have to be:
• 1. A 3-kg object experiences an acceleration of 4
m/s2. A 6-kg object experiences an acceleration of 2
m/s2.