Answer:
20 kg
Explanation:
Kinetic energy=½*Mass * velocity²
4000= ½* m*20²
8000=400m
m=8000/400
m=20 kg
Answer:
a. yes
Explanation:
The initial speed of the circular saw is:
Deceleration rate needed to stop the circular saw is:
The number of turns associated with such deceleration rate is:
Since the measured number of revolutions is lesser than calculated number of revolution, the circular saw meets specifications.
Indeed because some leave headlights off and ignore that fact since there are street lights around.
Answer:
I am just 13 and thanks for point