Answer:
Negative acceleration
Explanation:
Let us assume a vehicle is moving with a constant velocity u and then it comes to a sudden stop.
The initial velocity of the vehicle is u and finally it comes to rest, it means final velocity is 0.
As we know that,
Acceleration is equal to change in velocity divided by time taken.
We can see that the value of acceleration is negative. Hence, it leads to negative acceleration.
Answer:
y = 27 cm
Explanation:
given,
After 11 hours of burning height of candle is 27.9 cm
After 30 hours of burning height of candle is 26 cm
height after 20 hour = ?
the candle height decreases linearly
using linear equation
y = m x+ c
27.9 = m (11 ) + C.......(1)
26 = m (30) + C..............(2)
on solving equation (1) and (2)
1.9 = -19 m
m = -0.1
from equation 2
26 = -3 + C
C = 29
y = m x + 29
at 20 hour
y = -0.1× 20 + 29
y = 27
height of candle after 20 hours is 27 cm.
Answer:
t = 2 s
Explanation:
As we know that fish is pulled upwards with uniform maximum acceleration
then we will have
here we know that maximum possible acceleration of so that string will not break is given as
now we have
now for such acceleration we can use kinematics
t = 2 s
The answer is B. The atmosphere provides the earth a moderate and livable climate. The atmosphere is a storage of gases. It contains air which has oxygen that enables us to breath and live in this planet. Also, the atmosphere protects the people by absorbing harmful electromagnetic radiation from the sun.
