Question

A vehicle moving along a straight line at 60 m/s undergoes an acceleration of 5 m/s2. What will be its speed after 10 seconds?

Answer 1

Answer:

v = u + at

v= 60 + 5(10)

v = 60+50

v = 110 ms-1

Answer 2

Given

• Initial velocity (u) = 60m/s
• Acceleration (a) = 5m/s²
• Time taken (t) = 10s

Find out

• Speed after 10second

Solution

✟ According to first equation of motion

➾ v = u + at

➾ v = 60 + 5 × 10

➾ v = 60 + 50

➾ v = 110m/s

Hence,

• Speed after 10s is 110m/s

Additional Information

• s = ut + ½ at² [2nd equation of motion]

• v² = u² + 2as [3rd equation of motion]

$\rule{200}3$