3. Jens Martensson
•Pushing a car is easier than pushing a
truck with the same amount of force as
the mass of the car is lesser than the
mass of the truck.
3
Explanation:
5. Jens Martensson
•In golf game, acceleration of the golf
ball is directly proportional to the force
with which it is hit by the golf stick.
Also, the force applied is inversely
proportional to the mass of the ball.
5
Explanation:
10. Jens Martensson 10
Example:
If there is a block of mass 2kg, and a
force of 20 N is acting on it in the
positive x-direction, and a force of 30 N
in the negative x-direction, then what
would be its acceleration?
13. Jens Martensson 13
Solution:
To calculate its acceleration, we first
have to calculate the net force acting on
it.
Fnet = 20 N – 30 N = -10 N
FORMULA: a = F/m
15. Jens Martensson 15
Solution:
= -5 m/s
The negative acceleration indicates that the block
is slowing and its acceleration vector is moving
in an opposite direction directed opposite to the
direction of motion.
2