Question

force of 5N gives a mass m1 and accserlation .of 10 metre per square and a mass M2 an acceleration of 20 metre per second what would acceleration it woulded it gives to tight toghter​

Answer 1

For mass m1

newton 2nd law

F=m1a1

5=m1×10

m1=21kg

For mass m2

F=m2a2

5=m2×20

m2=41kg

if tied together 

Total mass =m1+m2=21+41=43kg

Now

F=MTQT

aT=mT5=35×4=320m/s2

Answer 2

According to the second law of motion,

• $\sf F = m_1 a_1$

• $\sf 5 = m_1 × 10$

• $\sf m_1 = \dfrac{5}{10}$

• $\sf m_1 = 0.5 \; kg$

Now, $\sf F = m_2 a_2$

• $\sf 5 = m_2 × 20$

• $\sf m_2 = \dfrac{5}{20}$

• $\sf m_2 = 0.25 \; kg$

When tied together,

• $\sf F = [ \; m_1 + m_2 \; ] \; a_T$

• $\sf 5 = [ \; 0.5 + 0.25 \; ] \; a_T$

• $\sf a_T = \dfrac{5}{0.75}$

• $\sf a_T = 6.66 \; m/s^2$

Therefore, the acceleration it would give when tied together is $\sf 6.66 m/s^2$.