Answer: 840000
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that,
Speed of a toy car, v = 7.2 m/s
Radius of the circular track, v = 1.5 m
We need to find the acceleration of the car. When an object moves in a circular path, it will have centripetal acceleration. It can be given as follows :
So, the centripetal acceleration of the toy car is 
. Hence, the correct option is (c).
Answer:
The second table.
Step-by-step explanation:
In the first table, the speed goes from 45 down to 43; then down to 41; then up to 42; then up to 43. It decreases and then increases. This is not the correct table.
In the second table, the speed goes from 45 up to 47; then up to 49; then down to 48; then down to 47. It increases and then decreases; this is the correct table.
To verify, we check the last two tables. The third table stays at 45, then decreases to 43 and 41. This is not correct.
The last table decreases from 45 to 43, then decreases to 41, then stays constant. This is not correct.
The second table is the only correct one.
Answer:
f(4) = 14
Step-by-step explanation:
f(x) = 3x+2
Let x=4
f(4) = 3(4)+2
= 12+2
= 14
